I think if you look at his numbers in regards to points and shooting % he would be right up there. I also like to look at points per minute and I think he is close to 1 point per minute, which is very good for a tall. His ability to knock down 3's is not quite Oscar-ish, but in the top % for his spot. As far as getting 20 plus point games, he is very good.
I can't back it up with stats ATM, but his rebounding stats are good, but padded a bit with easy DR's. I would suggest if we looked at his OR/DR ratio, it would be pretty low. A great/top notch 4/5 needs to thrive on ORs to give his team a second go.
Don't know how to get the stat, but I would be interested in how many ORs he gives up. In a contested rebound, I would say he is less than 50/50.
Don't know how to get this stat, but smart vs dumb fouls are another area. A smart foul is stopping a score or getting a valuable stop. Dumb fouls are just that. Moving screens, reaching fouls, offensive fouls that don't give the team an advantage. I would suggest that Damian Martin is a good example of a smart fouler. I would say 80% of the fouls he gives are useful, smart, clever fouls. DJ may be giving up a few dumb fouls - watch him play and tell me what you think.
Overall, compared to say Matt Knight, his PPG is about the same, but RPG a bit less and APG a bit less.