Psst... The right anwer here:
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72s, the worst hand against aces, You can't really make any good hand except two pair or full-house with both of your cards, while hitting a premium hand is the only way you can win here
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KK, you'll have to get a third king to win
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99, same condition, but you can make more 4-card straights than the kings.
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JTs, by far the best choice here. Good ability to make flushes or straights, which is the most important quality against aces (you cards do not affect your probability to hit pairs, trips or full-houses unless you have a pocket pair, and pocket pairs here are dominated by aces).
P.S.: Apparently, according to equilab, lower suited connectors (except for 54s because of the blocking effect of aces) are the best option here, because their main straights are not blocked by aces as it is with JTs and aces do not complete 4-card board straights you can also hit. 7s6s is extra good here, because it dominates aces' ability to complete 4-card wheel straights with 5432 (though I'm not sure how big of a factor it is, because wheel or not, you would lose to aces without completing a straight either way).
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