On this texture of a board(a ten high flop), I like to 3 bet the flop right away. This is becuz if my opponent has QQ,JJ, or Tx, there are many turn cards that could easily freeze up his action and he could possibly check to me on the turn so I prefer to get the money in right away on the flop while my opponent still likes his hand. If you got checkraised on a King high flop, waiting til the turn to raise has more merit since there is only one possibe overcard that could hit the turn that might potentially freeze up the villain and kill your action.
Also with AA heads up you should seldom take any line that might lead you to fold. Your hand is too strong in this heads up situation.