I'd be very hesitant to say any college quarterback is better than even the worst pro QB (including Andrew Luck).
I wonder if Cam's better than Jimmy right now? I'd say yes but I doubt we'll take him #1.
There's an adjustment that has to be made going to the pros, even for the best of them. They might be better in time, but I doubt I could ever buy that a kid who's still in college is better than a guy who's made the pro transition already.