I almost always play aces the same regardless of time in the tournament. I used to try and limp with a re-raise if possible, but I found I was rarely getting a raise, so I've adjusted to 3/4 betting, and re-raising or shoving depending on stack size. If I'm near the bubble, I will be cautious and try not to shove pre-flop if I can help it.
The Poker School Online says optimal play for aces/kings/AKs pre-flop is to always re-raise