" I have all the max precision gear and IMO might is greater than precision every time IF you have good controllers. If you don't precision is the way to go. "
Here's all the pieces of max precision gear though:
Head: Captain Cold head 44 precision
Neck: Brainiac DPS Neck 4 precision with the chance to hit 50
Chest: Mutant Warrior Harness 37 precision
Legs: Desert Nomad Kilt 37 Precision
Ring: Loop of Alien Kings 15 precision
Trinket: Nightshade Seed Pod 15 precision (4 less than the raid trinket, however the raid trinket has a higher weapon crit chance)
Face: Catwoman Goggles: 9 precision
Shoulders: Bioshaped Warlord's Shoulders: 29 precision
Back: Doomsday's Backpiece 29 precision
Hands: Wingman's Equitability Gauntlets (sub-raid) 31 precision
Boots: Forget the name (sub-raid) 31 precision
Depending on your weapon you can have your precision up to just over 400 (EDIT: when the sub necklace ticks in).
Full Link:
http://forums.station.sony.com/dcuops3/posts/list.m?topic_id=26390