The pally is just an awesome tank that requires very little micro-management, though. You will rarely have a problem with adds peeling off the pally tank, and pallies can mitigate quite a bit of damage. But, it depends on what you want to do. If you see yourself doing more pvp than pve, then I probably wouldn't go with the pally at all, and make it a sha/sha/loc, pri/loc/loc, or even sha/sha/sha. Try out different combos on the PTR if you get a chance (when it's up) and see which one you like.