FWIW I like Matthews over Joeckel as well, as a run blocker Joeckel doesn't impress me. He is an awesome pass blocker though. Matthews has better feet and awareness but seems to have shorter arms.
Joeckel will go before Matthews though. I and a lot of people will be shock if Joeckel isn't the 1st OL off the board. He could very well be the no.1 pick. No sure no.1 QB in this draft.