Post by CalaelenDT
First off, Balance is a DPS spec, so I'm not sure why you are switching to Cat/Bear form to DPS, but that's a big DPS/damage loss and something you should never do!
Second, the top stat for both Resto and Balance is Intellect as it increases the potency of spells, both your healing ones in Resto, as your damaging ones in Balance. Second is Spirit, which increases your mana regeneration as Resto, and your chance to hit enemies as Balance. The secondary stats (Haste, Crit and after Level 80, Mastery) don't really matter until you are Level 90.
Icy Veins is a good place to learn more about rotations, stat priority, glyphs, etc. once you reach Level 90.