Let's say that you could choose between taking people on in a multiway pot or you could take them on one at a time (where you'd have AA each time). What should you prefer?

Let's say that you have As Ac and your opponents have Ah Kh and Ks Kc respectively. You all have 1000 chips. If you take them on at the same time, you're 78.22% to win. If you take them on one at a time, you're 81.71% against the kings and 87.23% against AKs.

EV on the multiway is .7822*3000 or 2346.6.

EV on one at a time is .8171*(.8723*3000+.1277*1000) or 2242.61.

So in this example it's better to take them on at the same time in a multiway pot than wait for AA against each opponent. Dunno if it holds up generally though...

That's just one more argument for getting as many opponents as possible with AA.