All I roll is Lane #1. For the dry, the best one would be the XXXL if they are bone dry, it's the only plastic ball with an aggressive core in it, or if they aren't that dry the XXL. For THS oily i'd recommend a Black Cherry Bomb and for baghdad oily Super Carbide Bomb. If you don't have a reasonable Lane #1 shop in your area talk to drillwizard or doug sterner on here, they will give you a fair price. You can also send them a ball you want matched and they'll drill the new one.

Ok the polished GYRO Urethane would be a great dry lane ball.

For the heavy oil ball, unless you really need one, say you are comming accross the condition like every 2 weeks or your going to a national tournament soon, i would say to not get one.  it drives me crazy.  People go out and buy the biggest hooking ball out there and then the complain about it hooking too hard for them on THS.  So what do they do?  polish it up to make it work on THS.  then the complain about it not hooking in oil.  Basically if your going to get a hook monster then don't expect to use it every day. Personally i like these though.
Track Animal, Track Pheonom, Track Mutant, Columbia throttle, Columbia WOW (if you can find one) Columbia Alter Ego (same coverstock as the WOW) Visionary Charcoal Executioner, Lane #1 Super Carbide Bomb, and probably even the Brunswick Ultimate Inferno.  
Hope this information helps ya.
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