I Iike DMC over CJ as well, and I would also not choose any QB in the first. Let others take those "elite" top three, every mock I've done where I grab a QB early my RBs are horrible. You can always find value at QB later in the draft whether it's 5th or 7-9th. Also very similar argument with Megatron, sure he's obviously the best WR there, but there is depth throughout the draft at WR.
IMO RB in the first is always the best option, and the exception would be if the top 6 picks before you are RB, as then you're looking at some scary prospects, and then and only then would I go QB, just because it would be Rodgers and the RBs available at that point are nothing special. However, this is not likely as more people are going QB in the first. Here's an example of what I'm talking about.
Real example, granted its a little earlier in the draft then where you are, but I think it illustrates the point.