Kamina is coming back for movie, and we have the flashes on the movie's site. I'd still pick him though, to see how things would turn out in the future.
...Well, that's easier to predict, really. Simon would be more like Kamina, and even one Kamina wouldn't let himself be captured, so two of them would probably just fly off in GL or something, then come back in the nick of time.
...Oh, and Yomako would be in the city instead of that one coastal town, so those guys would be fucked by the Ganmen, lol.
...Oh, but even if Kamina broke free of his illusion, what would he do to break the others out?