I would like to start a little experiment and see how long it takes me to get a priest to 70 without leaving Stormwind. Well that is of course impossible as I need to be at least level 10 to queue for battlegrounds.
So what I really want to try is Elwynn Forest->Stormwind->Borean Tundra. Maybe I will even leave out northrend - but those quest rewards are awesome, so I have to decide by the drops from dungeons.
I plan to do both battlegrounds and dungeons, switching between both as it fits my mood, usually I do dungeons because I suck at pvp.
My question is what spec is best for those early dungeons. I would try disc but I hear about warriors/bears having rage problems with the shields and such and that holy is probably better for 5 mans (but when I read that it was about heroics..). I don't need a specific spec (but I would appreciate it), I can probably sort this out by myself - I just would like to know if there are advantages/disadvantages for early 5 man healing in the trees or things to avoid when I want to make runs smooth as possible.
Most guides only focus on end game healing or levelling through quests/killing (which is of course faster, I know that).