I use the stuff that Exbass posted. The Lucas green is good, so is the red n tacky.
Valvoline and Penzoil both make gray greases that also do the job well. I have used them all.
To date, in 27.5 years my wheel bearings have been replaced twice. Once because I upgraded to a Dana 35, and the 28 bearings just don't fit, and then again because I over torqued the first ones (which were original to that axle) and made them buzz.
In fact, I have only seen one major bearing failure on that style setup, and that moron forgot to put any grease on his new bearings Saturday afternoon. Then as he pulled into work Monday morning his wheel fell off. We didn't really trust him with working on cars after that.