בס''ד
First of all, baruch hashav (welcome back). It's great to see you.
Your question is difficult to answer because of the complicated situation we are in. I am not sure that my answer is the correct one.
I expect Trump to win both Florida and Ohio. Which may finally get Rubio and Kasich out the race, setting up a two man contest between Trump and Cruz. The fact that Rubio and Kasich may be out would be good, of course. But the bad part is that Trump gains 165 delegates in two large, winner take all states and also gains tremendous momentum. That may make Trump unstoppable. It may be too late for Cruz to catch up at that point. On the other hand, if Kasich and Rubio remain in the race and continue to split the anti-Trump vote, that will probably also lead to Trump winning the nomination, G-d forbid.
In other words, we are in a tough position no matter what. I would vote for Cruz in Florida because I believe that Trump is going to win big anyway in the state. Rubio's campaign is failing in Florida. I think Cruz may actually come in second in Florida. Not that it makes a big difference - whoever comes in first wins all 99 Florida delegates.
In Ohio, I would vote for Kasich to stop Trump from getting the 66 delegates there. Kasich still has a chance in Ohio even though Trump is leading.
I must warn that my advice could be wrong and circumstances could change between now and next Tuesday.