Warrior was my main in Vanilla, TBC, and most of Wrath. Since then, various stints with my Shaman, Paladin, and Death Knight.
I am 100% Paladin right now, I really don't like Warrior tanking or Arms/Fury DPS anymore when compared to Protection/Retribution. I just wish we had tri-spec so I can see if I like Paly healing over Shaman healing.
90 boost is going to my 60 Warlock, but I really have never liked Pet classes... we'll have to see what changes WoD brings, but I do like flinging fire and death on my Warlock. Maybe Grimoire of Sacrifice will become more of a thing, or I might fall in love with Demonic Servitude and perma-Doomguard/Infernal fun!