I just hit level 50 with my druids this morning and when they get 60 I think I'm going to go ahead and roll 5 shamans. I leveled 5 shamans to around 30 before RAF and adored it! I also had another team that had a Prot pally as the main. Pally/Shamans bad for PVP good for PVE (instances). 5 Shamans and the stackable health totem is just insane for keeping life juice running through you!

I do want a pally for tanking instances on occasion and perhaps using it as a power leveler in the future so what I plan on doing is level 10 Shamans to 59 and insta level a Pally with the level gifts. That way I can swap around whenever I need to. Not sure if that helps or not.