After a bit more playing I have more of a "feel" for pet types. Still only have three 25s (well, one is 24...)... dragonkin, beast, and critter (Onyxia Whelpling, Adder, Rat). But I have a few up-and-comings. I feel like mechanicals are pretty overpowered... well, at least extremely strong. They effectively have a +1 turn and 20% boost, which is awesome until you hit an elemental team. My Clockwork Gnome is 17 currently, but I want him to hit 25 because he's a powerhouse. His normal attack rivals the strength of my dragonkin pets (which I consider slow, heavy-hitting, high HP pets), but he has better speed and the species bonuses. I also am leveling my Celestial Dragon, which has the awesome Ancient Blessing ability, as well as a weather-effect attack that increases healing. I think once they hit 25 my rat and adder will be retired.
Unfortunately, without tamer battles leveling seems to take foreverrrrr. And I already did almost all the tamer dailies today, so I'll have to wait until tomorrow to level better
Edited, Dec 9th 2012 9:48am by LockeColeMA