Nine handed, AA is
97.17% to win against TT, TT, 99, 99, 55, 55, 44, and 44. Make it 11 handed by throwing in a couple of KK hands and it goes up to
98.24%
I guess the 14 ties are the 7 ways to make quads times the 2 aces left in the deck to be a kicker, but it took me longer than I'd like to admit to realize that.