Kasich would probably be an intelligent choice for Trump. Kasich was the only one of the candidates who was beating Hillary in head-to-head polls, and he attracts the saner end of Republican voters—which I think is going to be much more important in the national election.
I think Kasich as VP would also temper Trump’s insane image, and maybe make people think that he’s not so dangerous if he’s choosing the “moderate” Kasich.
Ben Carson is an imbecile, and I think Trump knows it. Same with Sarah Palin.
Chris Christie, who was the first former candidate to endorse Trump, is too much a pathetic gimp and loser. He was practically sucking on Trump’s nether-regions. And as much as Trump likely got a kick out of Christie’s submissive act—I think he also knows what a completely unappealing loser Christie is.
At the moment, my money is on Kasich. If not, then maybe one his shady friends from the organised crime underworld? Maybe some former contestant on The Apprentice?