I like Elite Dymatize, primarily because it has zero to only a few carbs (it's like the EAS AdvantEdge), and because I can get 5.5 lbs for $25.99 off of myvitanet.com (add shipping and handling of 6.00) and also now for the same price at a new local Elite discount store that opened up here in West Jordan, Utah.
Mixes nicely in water (I can't use milk) and tastes much better than most other types I've tried.