Which one's better in SH? A3! KJ! A3! KJ! Tastes great! Less filling!

[creedofhubris]

One of my friends and I are having an argument about which hand is better to be holding on the button in a shorthanded game, A3o or KJo.

We are contemplating a situation where we're open-raising from the button with normal shorthanded opponents, a.k.a. loose action junkies, in the blinds.

He likes A3 because it "wins more showdowns". I like KJ because you can bet it with more confidence if you hit, you're more likely to hit top pair, and you're likely to win a kicker battle.

I suspect that in a very passive game, A3 might be better. I play higher stakes than he does, so he's probably used to very passive checking stations.

Thoughts?