Better passer... but the other QB is a better athlete. If we're going to run the read-option, we probably want a QB who can actually threaten with the run. Even with MD ignoring the option of the QB running, Rhoda still didn't run. And the one time he did, he didn't get nearly as much as he should have.
I'm OK if we stick with Rhoda and go with a pro-style offense. But if we're going to run the read-option, probably better to go with the other guy.
