Graham has been excellent for the Dogs this year, and Gus Gould has credited him for being the main reason behind their ability to play the way they do in the forwards with plenty of offloads before the line. He works very hard and makes his tackles as well.
The only thing that pulls him back slightly is his lack of 'oomph' when hitting the line with the ball.
As it is, I'm enjoying watching all the Brits this year - Luke Burgess has really kicked on as well, and Widdopp at the Storm is a class player who I wish sometimes would be given more responsibility. Reed has done OK for a guy basically on the wrong side of the field due to Hodges, and Ellis has been good when fit.
In fact the most disappointing player for me at times is Sam Burgess. Physically he has everything - speed, power, great ofloading ability - but his mistakes are often bad in terms of field position and tackle count. Luke Burgess was similar at the start of the year, but has improved a lot (although he'll never be the dynamo Sam is).
Anyway, the more the merrier to the NRL.