There's a couple of things you need to know.
Newegg reviews are useful, but not the way you are using them. It's likely that very few of the folks who rate the coolers on Newegg used more than one. Those that have didn't run controlled comparative tests to come to their conclusions. So what would they know about which was best?
The ACF7 was a top cooler - quite a while ago. And when it was $25. Since then many have passed it by. And it is not quiet at moderate and high cooling loads.
If you're looking for an socket 775 cooler, scan this review:
http://www.frostytech.com/articleview.cfm?articleid=2333&page=5
If you're looking for a socket 1366, check these:
http://www.frostytech.com/articleview.cfm?articleid=2333&page=5