Tanking and FuryFollow

Ok so I have been Prot spec since level 10 and decided to respec at 57 because i heard prot spec in outlands sucks and fury kills them so much faster. is prot spec really that much tougher? i tried to tank ramparts the other day and i couldnt hold aggro so im thinking if i just respec back to prot then i wont have a problem with instances....but questing is different.....

i dont know if i will have a tough time with questing, as a prot spec, i never really minded it before. so should i respec back to prot? Is it really that hard to quest a prot warrior in the outlands?