Boils down to your preferences as they said. Thinking of only the endgame like you say kinda limits your options. Enjoy the journey, not the destination, if you actively think about it it starts to suck ;p

Personally I feel except for pom-pyro-fb'ing people Mages are fairly boring/tough to box in any fun way...Shamen have power and versatility. Half the fun of mages is AoE and blink abuse and both of those screw with your ability to follow as a boxer or are outright undoable correctly.

I dunno about the long run but I'm enjoying myself now and that's all that matters.(On a side note, 15k honor in 2 days? That's still enough to buy something and not bad, pfft on your over-the-bar expectations raised by honor farmers; feh on how much you get, just enjoy ganking the enemy in the BG and the honor will come in as you go regardless ;)