Here is the deal i got 4 shamans and 1 of them is on my main account.. On my main account i got 5 70's in fairly good pvp gear. 1 holy paladin, 1 resto druid,1 arms warrior,1 aff warlock and a shadowstep rogue.

My shamans is currently lvl 17 but i hear alot about boosting beeing so awsome so im wondering what would be fastest?

Buying one more account and make a new shaman then using my paladin(respeccing to prot) for boosting. I see lots of people running paladin/4shamans wich makes me assume that its good. But is boosting realy THAT effective?