If you want to pay for WinRAR, go for it; but Zip Genius is free and handles more archive formats. Just color me "cheap".
If Zip Genius "screws" with you... (laugh) well, I'm afraid I can't help you there, mate. For me, selecting a destination folder and clicking on "Extract" has never proven particularly difficult.
PowerArchiver I must say, is pretty sweet, but the full version is what, $30?
Feh... I'll stick to Zip Genius... but to each thier own.