Yeah. If you don't have to take LA or racial hit dice, go with a kobold or something else with LA+0. If you have a minimum LA, that changes things. If ten whole ECL have to be accounted for by LA and HD alone, here are some ideas off the top of my head:
- Pixie has great modifiers, great AC and at-will Fly and Greater Invisibility. Shove in a bunch of templates to bring it up to +10.
- Ogre Mage isn't a bad choice. Good CHA and CON, and the racial HD mean more hit points. Regeneration is nice too. Of course, that's ECL+12...
- You can't go wrong with Lich or Vampire.
- Any tough race with the half-dragon, half-celestial and/or two-headed template can be nice.
- Boggle (MM2) with templates can be nice.
- Jermlain with a lot of templates (also good if you can get away with LA+0).
- Anthropomorphic (Savage Species) animals can be really good.