CindyLou the fundamental flaw with your question is that each man will answer based on what he is looking for at any given time.
Me, personally, I would rather be a 6 all the time (given the two choices). The uberhot 10 may get a larger quantity of male attention, very true as men are extremely visual creatures. But she won't get nearly as much QUALITY.
I am sure you already know this (being an attractive woman yourself) that just because you get a whole bunch of guys who want to "give it to you good" that isn't necessarily a flattering/positive thing. Matter of fact, it has the opposite effect.