Okay I was thinking of having DPS maybe as my main spec or maybe Heals i have an 85 warrior so i do know how to play but which one will be the most fun in the long run, and which one will be wanted more for raids im leaning towards priest but id like some opinions to make my decision some what easier. and if i choose priest should i go heals or dps?

priest it has better skills and powers

dps, then when you can get anoher spec, get heal. or the other way around. you decide. just remember you CAN reset your talents and you CAN get a second spec. besides its your character

perks of druid
if you get bored, you can start raging as a bear, pretty much a slightly weaker version of a warrior with some differences
Also, jumping off a building and transforming into a bird never got old for me, seriously. xD
perks of priest
since druid's healing ability has been nerfed, you can heal much better

I played a rouge in WoW and when I went to priest, I got bored faaaaaaaaaaaaast. ._.;
if you play priest, see if you get bored by doing nothing but healing or dps'ing
experimentation

I would go with GETTING A LIFE.