Depending on what you do, capping out enfeebling magic first might be the best choice. If you solo a lot or find yourself casting a lot of sleepga's, the extra enfeebling skill can really pay off. You don't want to be one of those gimpy blms that can barely stick gravity on an exp mob.
For AM2, I originally chose 2 burst, 2 freeze, 1 tornado, 1 flare. I literally casted Flare once, and even then it was only for shits and giggles. I have never once wished I had Quake or Flood to cast, nor have I ever been on rdm and wished I had another blm to cast Quake to drop wind resistance. Tornado is mildly useful. If you do a lot of Kirin or Ouryu it probably wouldn't be a bad choice, but overall I'd say the best option is to do 3 Burst, 3 Freeze.
For AM2, I originally chose 2 burst, 2 freeze, 1 tornado, 1 flare. I literally casted Flare once, and even then it was only for shits and giggles. I have never once wished I had Quake or Flood to cast, nor have I ever been on rdm and wished I had another blm to cast Quake to drop wind resistance. Tornado is mildly useful. If you do a lot of Kirin or Ouryu it probably wouldn't be a bad choice, but overall I'd say the best option is to do 3 Burst, 3 Freeze.