I view Vesey's physical abilities on the ice, his ability to hit a hole, how quick he can do it, his physical skills, his shot, his skating/balance, and other attributes of a player and I view it against Girgs physical skill sets(apples to apples).
I see a gap in their physical skills and abilities. Girgs is very slow to react to plays on the ice consistently, Vesey has a better understanding where to be and has a much more "professional flow" to his game where he has a much more clear role/job on the ice. Its tough to describe but it's easy to see Vesey knows where to be on the ice to make plays.
I see a guy who is still weak on his skates who doesn't seem to have a solid base to support himself when in battles along the boards and shielding guys away from the puck in Girgs and you see him lose battles all over the ice consistently and I see a guy like Vesey who has this base down and though it's against weaker competition, it will translate well the NHL game.
Vesey has by far the best shot of the two. He also is the better passer. His overall offensive game is much better.
I'm not buying the idea that BECAUSE Girgs has played against NHL competition that means he's better than Vesey. Girgs is a victim of horrible asset management in terms of his development, all because Nolan wanted that type of game that Girgs brought, all work no system learning. There's aspects of Girgs' game that needs refining and he should be just on the fringe of being an NHL ready player this year, not entering his 5th professional season. I believe Girgs development as a player has been stunted and I blame past Buffalo Management for this. As I said Girgs may have more room to improve, but right now I'd rather have Vesey's game than Girgs'.