I saw grealish and graham play for ireland under 15s about 18 months ago. Graham scored 2 and grealish created 4 goals. Graham looked physically stronger and much more powerful than grealish and faster over 10 yards. Grealish looked really light and weak losing out on all physical battles. Grealish had an excellent turn of pace to beat a man and make a yard to cross. Grealishs crossing was sensational. Grealish looked a better more incisive passer and crosser than graham on the day and seemed technically better constantly getting his head up when he received the ball. Graham seemed more direct and combined good skill and trickery with a physical presence to out muscle players which Grealish did not seem capable of.
Overall on the day they both seemed excellent players and I was gutted when Graham did not stick with us. On the day I would have said that Graham was the one most likely to play first team football for villa at a young age. You could see Graham been physically able for the premiership and direct in possesion to frighten defences. It was hard to imagine that Grealish and Graham were the same age given how weak and light Grealish was. I would say you could think of graham been similiar to Robben powerful,fast and direct and Grealish been more of a a Silva type back in the day when silva played out wide for valencia. I have seen Grealish a few times since and while he has got taller he is still very weak but is techically super. You need to be exceptional in the premiership if you lack a physical presence but i really think Grealish can do just that. Graham has the advantage of a physical presence that may make elevation to the premiership easier. I wonder what other people like sir Gary think?