Ive only used melee spec since RoK came out.. i tried charming pet etc but i found out it's alot slower and better just go and tank the mobs.. concerning your spec: if you don't plan to raid full time melee spec is just fine and won't hurt your healing at all.. now it's pretty easy to get mastercrafted gear with full wis and str so you won't lose power because you want to beat the mob..
On raiding though, it's totally different story.. except few trash mobs or the first 4 nameds in PR you can't melee them at all so better use spellcasting spec (although your dps would be lower by around 30%).
About fury better nukers, well that's true and can't deny it.. actually if think about betraying better do it now so you won't lose too much plats on spells
