I have no real disagreement with that analysis - though I still think it will come down to Walker and Cruz.
I think over time their messages and actions will win out, even over Rubio, who apparently will be formidable - at least early.
Eventually though I think the talk radio and internet universe will reject Rubio, preferring Cruz first and Walker second. I think Walker will have a tiny bit more appeal outside of that universe - which is why I foresee a two person dogfight in the end.
The winner will be the one who ignores the other and focuses on the real enemy.
He speaks well, lies almost as well as Clinton, is likable, telegenic, and a newly chosen minority; without enough votes siphoned off by other moderates such as Jeb, or Christie, Jeb, or other RINO's he appears to be the greatest threat to us getting a true conservative.
If he gets money, watch out.