Here's what I like:
Best: Tour Bite, Hurricane Feel. Both have good spin and pop
OK: 4G--maintains tension well, otherwise a little dull. Hepta-Twist--great spin, decent power, lousy plastic feel.
No thanks: RPM Blast--great performance for a couple hours, then dies horribly. I've never had my arm hurt as much as when hitting with this stuff after it died (about 4 hrs).
Now trying: Big Hitter Blue Rough, Volkl Cyclone.
After these two, I'm done screwing around with crosses for my gut.