Except for Rubio's stance on domestic surveillance, I could easily vote either Rubio
I feel like the most recent debate did a good job revealing Rubio for who he is......a smooth campaigner with little actual experience. All the governors on the stage managed to have good, substance filled answers to various questions, but his didn't seem to have as much clarity behind them.
For example, here are the things people said (paraphrased):
Kasich - we need to help people with heroin addictions, and here is my plan to do it
Christy - we need to help people with heroin addictions, here is my plan, and I know it works because it worked in New Jersey.
Bush - we need to give more power to the states, and we're going to shift funding for schools, highways, and healthcare to the states.
Rubio - we shouldn't be focused on the rich, we should be focused on making more millionaires.
Can you see the difference? While Rubio's idea sounds great and is a fine philosophy, there isn't an obvious way to achieve it, and he didn't present a plan to do so. He's still at the philosophy stage, whereas the other three were at the practical implementation stage.
And Trump was just there putting on a show. Rhetoric FTW.