Troy Lee Designs ODI/TLD Lock-On MTB Grips Model 3011-1200

unless you prefer a minimalistic feel, you will not likely want for another grip after using the TLD ODIs

Pros
amazing grip, great when wet, adjustability features. and the color choice between lock rings and grip is awesome.

Cons
They're a bit of a handful at times. Larger, moto-style grip. Uses a 2mm Allen for lock bolt (should use a 3 IMO)

Pros
Great grip that lock in place. Easy to install. Long lasting grips.

Cons
None