Admittedly, Luke Skywalker has a bit of an advantage over the rest of the Tributes on our list. Although he clearly would not be able to bring his lightsaber into the arena, his telekinetic abilities and danger sense could handle anything the Capitol could throw at him.
Even if Skywalker was admitted prior to his Jedi training, his youthful energy and reckless courage would do him well against fellow teens. It's true that Jedi don't take lives in vain, but given Ben Kenobi's clear approval of defensive amputation, we think Luke would do just fine (trust us, we've searched our feelings).
Odds of Survival: High.