Feral is considered faster for solo-leveling. You heal yourself using mana, and fight using energy/rage. Your mana regenerates while you are fighting the next mob, so there is little downtime. However once you reach outlands there are more regen stats on gear, and this distinction becomes less obvious. If you want to level quickly, tank or heals can have virtually instant queues for 5-man groups (server-dependent...). Going feral will mean you can tank 5-mans and also solo efficiently.
Most of the people who go boomkin/heals, or some hybrid of the two, do so because they prefer the ranged or healing roles; or want to play those roles at end-game and use their leveling time to learn the class. Which isn't a bad idea either.
druidsock wrote:
Most people will tell you to level feral as it is faster. They are right. The killing resource is separate from your healing method. You kill heal and move on. Plus bear form can take a beating and live, it is the tank form after all. Plus for the 2 caster specs the gear in Azeroth is crappy to say the least.
Leveling as Balance or Resto the whole way would be painful. Balance becomes a stronger option after you hit Outland at level 58 as the gear will start to appear to support the build. Resto can work well if you always have a partner. As they take the hits and you heal. With the new LFG tool resto and battle ground experience gains resto and to some degree balance can be leveled the whole way a lot easier than before such tools existed.
Honestly, I would still recommend Feral as it is faster but do what YOU enjoy as that will make anything seem fast. Regardless, in each spec's section there will be a it of info on what sort of gear to grab while leveling.
As for cata, I'd speculate that things won't change a lot. Kitties will still use energy, bears will still use rage, and boomkin/resto will still use mana.
Edited, May 25th 2010 10:53am by someproteinguy