I, too, see JC as an excellent, exciting, player. However, I feel Buddy's skill set is a better fit chemistry-wise for this years team. I really like the Battle/Buddy combo. I've been higher at Battle at pg than most.
I am trying to break it to people that it's over for JC this year. This is no longer development time. Last third of the season, big games the rest of the way. And the Battle/Buddy combo is still improving/developing - any game time given to JC comes at the expense of the Buddy/Battle improvement. I clearly see the reason JB would choose to invest in the B/B combo.
IMO, JC is next years pg. I hope he sees it and responds appropriately. If he's the competitor I think he is, he will.