The entire series has been filled with tons of stuff about how he loves them all equally and the three of them sharing him. Min's visions have also implied this a few times.

As to whom he SHOULD choose... I'd say Min.

Elayne's neat and all, but they've honestly spent less than 100 hours in each others' company. Something like an hour in Eye of the World, 3 days in Tear, and then a night making a baby? Yeah.

Aviendha, eh. I could see it, but they don't really have anything in common. She was just a hot spy that was constantly scowling at him.


Min, though- they're obviously compatible, she's the least likely to go "Fool men and they're manly foolishness *sniff sniff skirtshift*" She's intelligent, pretty, deadly and does all this without being able to channel.

Min can be annoying at times, but I'd definitely put those two together, if it had to be two.