I'm sad to see that more people are happy to use IE than Opera.
If you don't like Firefox (or other Mozilla variants) then this is an excellent browser, with none of the usual IE security flaws.
Microsoft themselves suggest that IE should only really be used on Corporate Intranet and Application servers, and to download a real browser for use on the internet.
IE is very powerful in its integration with the OS, and allows for great help and database application integration... this "feature" also makes it far to trusting to allow out on the web for real. Any attempt to make it safe to use on the internet, would either lock the internet down to the extent that most pages don't work at all (Strong Proxy Filter), or break the integration of any local application that uses IEs web rendering to present and manipulate local information... which is the whole point of IE.
The best approach is (like in Windows Server builds) to set the internet zone to maximum restriction, which means no cookies, no form submission, no ActiveX plugins, Java / Flash etc no download files, no executables and no client side scripting.
Get a browser that doesn't run native code directly on your machine to do any of these things in the internet zone, and use IE only in local and trusted zones.
I don't like to slag people off, and I don't really care what browser people prefer, but as IE isn't even meant as a general day to day internet browser... I think people who openly admit they use it as such are doing themselves a dis-service.
People... research what a Web Browser is, what it does, and decide to get one that does what you want... if you never go outside pages on your own privately hosted LAN then IE is probably your browser of choice. For ANYTHING else, get another one... which one is up to you, but DON'T use IE on the internet. And I'm stressing that here as this poll is hosted ON THE INTERNET, not your home LAN, so I KNOW you go there.

lol
It's MOHO (my own humble opinion), but it's also the recommendation of the very people who brought you Internet Explorer in the first place.
ZOMG... This I have to take in hand:-
You might think im just some dumb kid who really doesnt know much about computers. Granted, I don't know everything, who does, but when it comes to keeping my computer safe, I make sure I know what im doing. I don't have a budget for buying high tech security programs, but that doesnt mean I dont do my best to protecting myself.
Good, Firefox and Opera are both FREE!!! They cost nothing, and if there is anything you don't like about Firefox, the source is also freely available for you to change whatever you want. Mostly you can write a plugin without recompiling the program however.
I don't have problems with IE because I dont have any, period.
Then you don't use it, that's the only way not to have a problem with ANY browser... they all have problems, that's a fact of life.
I use AVG, Spybot search and destroy, and Ad-Aware to make sure of that. And I know they dont catch everything, but it gets most all of things that manage to get on my computer.
That's fine for Viruses and Malware, what do you do for rootkits? Spybot is pretty much a waste of time, IMHO, it just improves the effectiveness of System Restore, and Ad-Aware is getting out of date, but each to his own. Just coz I can do everything they do for you manually in half the time, doesn't mean everyone can. And those things are necessary regardless of what browser you use. Especially if you install software from the internet... you have to Virus scan it with something.
The reason FF is safe for now is because its new. People havent had the time to produce viruses and such for it like they have for IE. Given time, FF will have the same problems.
Firefox is NOT new... it's a newer version of Mozilla, Mozilla was one of the first fully standards complaint html renderers... the other (never fully complaint, even as IE)was Mosaic, which IE is a NEW version of. There are as many "viruses" (not the right word, exploits is better) for Firefox, but it's not as easy to install them unknowingly. It's actually easier to make such an exploit for Firefox as a plugin, but it's very hard to make that exploit install silently and then take over the entire system as you can with IE... rather, you compromise only the browser it's self, because Firefox plugins are multi-platform (work on Windows, Linux and MacOS) which operate only in a Virtual Machine with no access to the host system.
IE and Netscape virtually problem free in terms of malwear and such when they first came out. Netscape died, leaving IE. IE is the longest running internet browser. Being based off a previous browser doesnt make it the same thing. IE is older and generally unchanged in its design. Because of that, it works. And for me, it works perfectly fine.
IE is BASED off of Mosaic, which is one of the oldest browsers. Netscape is BASED off of Mozilla, and has not died at all, in fact new versions of Netscape are mostly compatible with all Mozilla / Firefox plugins and addons. In the early days the Mozilla and Mosaic teams worked together on their engines. So the lineage is actually equal for both, and they have a shared heritage.
And I almost missed that you suggested the IE and Netscape had no malware when they came out... hmm... well when they came out most malware and viruses were distributed via floppy disks and bulletin boards... but if BBS stuff was hosted on one of them new fangled Web servers or even on a Gopher or ftp server you could get them just as easy on either of those browsers... IE had ActiveX integrated around version 3.(something) and that was when it became completely unsafe to use on the net... it's also when it became usable as something, because it's rendering has always been so non-standard (not bad, just not standards compliant) as to mean most people used netscape or mozilla proper for the internet and chose IE or raw Mosaic for their corporate LAN. ActiveX is what killed Mosaic in non IE form off... coz it's custom form controls are killer for LAN based browsing.
FYI Opera is also based on the Mosaic engine... but they went the Netscape way of making optional and configurable parts Java based, not pure machine native executable code.
Heaven forbid a company attach one of THEIR products tosomething THEY made. Why dont you bash Apple for distributing Macs with Sefari?
Safari is really new. That isn't based on any previous engine... it's pretty nice for saying how young it is... but Safari isn't integrated into the OS to the extent that if you remove it nothing works any more... thats the big thing that upsets the real IE haters. As I say, as far as I'm concerned, that's a positive thing, so long as you don't take IE near the internet.
I am no puppet of Microsoft. Im sorry if me thinking that Microsoft is generally good is offencive to you. Deal with it.
I prefer IE over FF. I prefer Microsoft over Mac.
I prefer Macs over Windows, but I prefer not to use Apple hardware, so I'm in limbo...

Preferences are fine too... but for my money, IE and Firefox are not competition. You can't integrate your corporate Application server into Firefox in any sensible way, unless you take the source code and re-write it. You can't use IE safely on the internet and preserve it's good points either.
It's like comparing Notepad (or rather vi or Scintilla) to Word. It's very difficult to bash up a plain text document with good ascii formatting, or script some pearl or Java et el in Word, and it's impossible to produce press ready formatted documents in notepad... unless you really know your PostScript source or LaTeX off the top of your head. Both fantastic tools, great at their own thing, but not really in the same game.