The benefits of holding the presidency always outweigh the risks.
I think this is kind of empty rhetoric for both sides of the argument. For Hilldog, could possibly result in an exciting BIG GOP executive comeback in 2020, for 'Pubs, it could mean getting jammed from national office for another long period as well as loss of public trust with holding executive office.
Rubio isn't charismatic enough to ever win the Presidency.
In comparison to Kasich, Hillary Clinton, .etc? We will have to agree to disagree on a massive scale here, unless I'm not picking up your sarcasm.