I don't want to sound like I'm shitting on Johnny Nitro, because that guy has improved leaps and bounds, but what really impressed me about Joey Mercury, is how he was not only better in the ring than Nitro, but was also better on the mic. He's kind of the Matt Hardy to Johnny Nitro's Jeff Hardy.
He's a great worker, underrated with the mic, and has some good size to him for an independent performer. I think he'll do great in ROH.
Also, I really want to see ROH give shots to Nick Dinsmore, Rob Conway and Doug Basham. Three of the better technical wrestlers to ever come out of OVW (along with Charlie Haas, Shelton Benjamin and Brent Albright). They'd at least be great helping guys in the ROH Wrestling Academy.