judging off the 2 legues I bowl in (since I haven't purchased any current equipment in awhile), I would have to say:
1) Hammer Black Widow (with a polish). Every other person in my scratch league is throwing one, and all seem to roll great (at least all the ones that are thrown by decent bowlers). The Black Widow Pearls, however, aren't making that good of a sowing.
2) Visionary Ogre line. I know that we are supposed to only list 2 balls, but the numbers are too good to deny. There are 4 Ogres total in my other house (1 solid, 2 pearl, and 1 SS), and all just tear the lanes up (Ogre Solid shot 824 I believe last week).
A few honorable mentions:
Brunswick Twisted Fury (only a few people throw it, but looks great)
Roto-Grip Cell (just started seeing them around here. DEFINATELY hooks)
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Just my $0.02; so take it for what the Foreign Exchange values it at! 
"I was raised by a cup of coffee..."
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