Trump in all likelihood will win Florida, main question is if Rubio can even hold on to 2nd place. Kasich can win in Ohio but it is really close, it's an openish primary so Trump can attract crossover voters. Missouri should probably be close between Trump and Cruz, close to Cruz's political base but Trump led the 1 poll I seen from there. Trump leads in Illinois, Cruz 2nd but Kasich trying to make a push there. North Carolina Trump looks positioned for another win, Cruz further behind again at 2nd. Kasich and Rubio are done if they lose their homestate, either the establishment will rally to Cruz or accept their fate. Both Florida and Ohio would end it pretty much, winner take all states.
Bernie could do well on the surface, he is polling pretty well in Missouri and Illinois(proportional) but is getting blown out in Florida and North Carolina. Ohio is what it comes down to for him, he needs to overcome the margins again like Michigan. Big test for Hillary, if she can't put away Bernie she has no chance in the general election.