Delegate count to date:
Cruz 8, Trump 7, Rubio 7, Carson 3, Bush 1, Paul 1
Rubio will free media on Fox that Cruz can't buy
Cruz 8, Trump 7, Rubio 7, Carson 3, Bush 1, Paul 1
You left out the three uncommitted RNC delegates. As Bush and Kasich are lost causes, those RNC delegates will, in essence, go to Rubio (the backup GOPe favorite) at the convention.
The delegate count is actually:
Cruz 8, Trump 7, Rubio 7, Uncommitted RNC 3, Carson 3, Bush 1, Paul 1
In essence, the delegate count is:
Cruz 8, Trump 7, Rubio 10, Carson 3, Bush 1, Paul 1