At this point, Duchene looks like the best player out of the trio. Hodgson has had a good start to the season, and 40 points isn't impossible for him to keep up.
One thing about Hodgson is he really has the smarts and the skill, he just needs to work on his skating. As I've seen quite a bit around, Hodgson's top speed doesn't seem to be the problem, just his acceleration. He also had a pretty bad injury setback early on, so we'll see what happens 3 - 4 years down the road.
Nevertheless, I still see Duchene ending up as the top talent in this trio based on what I've seen of Duchene and Hodgson and what I've read about Grachev. Hodgson may push for this, but I see Hodgson maxing out as a 1st line center, with the slightest of chances to become a top 10 center in the league. Duchene seems to have the potential to be a top 10 center, but only time will tell.
I'd actually like to hear more about Grachev.
PS: Found this thread because I was searching around and reading up on the Lessio, Jenner, Jensen line in Oshawa. Anyway, BUMP.