I've been on the Cordarrelle Patterson bandwagon for a while now and would be happy picking him anywhere. He has the deep speed to keep the safety off the LOS, the quickness to get open consistently, natural hands catcher, size and solid physical build to withstand NFL punishment, and RAC ability up there with the best.
But, he isn't Justin Hunter. While Patterson is big, he isn't a great leaper with long arms to become the alley-oop guy along the sideline or the dominant threat inside the red zone. He is a stretch the field guy who scores from outside the red zone by creating separation, using speed, and his ability to see lanes and set up blocks to get into the end zone. Inside the red zone he is strictly a quickness guy with some power to run through a CB for the last couple of yards.
IMHO, we need a red zone threat, but I'd be happiest if we were able to get that from the TE position with someone like Eifert or Ertz. While I'm more of a fan of Eifert, either one would fit our system very very well. Both are good hands catchers who are big strong seam threats and red zone mismatches.
It's worth noting that this season Patterson lined up in the X position more frequently than Hunter. IMHO, that's because in addition to speed, Patterson ran a less complex route tree. I'd guess Patterson wouldn't come into his own his rookie year, but would break out by his 2nd or 3rd season. That will push him down into the 2nd round I think. But, Patterson appears to have the work ethic and dedication to learn, so I'd expect that it is just a matter of time before he's excelling in the NFL. I don't really see him as a boom or bust prospect, but rather a little raw on the route running.