My comparision of DCL and the best English striker we currently have in the UK. I think the differences are obvious without reading the below, namely with finishing and attacking with the head from set pieces. But these are things DCL will improve on, as he's already improved so much this season.
DCL
Heading 7/10 (in terms of winning balls from goal kicks he's excellent, attacking from corners not quite so impressive, but he's still strong)
Passing 7/10 (rarely gifts possession to the opposition)
Hold up play 8/10 (excellent at keeping defenders busy and getting the ball and passing it back to Gomes or out wide)
Finishing 5/10 (his one big flaw which needs serious work on)
Work rate 9/10 (as in last game, busts a gut in the final minutes to help the team)
Natural fitness 9/10 (natural athlete, extremely fit, rarely injured)
Kane
Heading 8/10 (proven ability to finish well with feet or head)
Passing 8/10 (has good vision and rarely gifts possession to the opposition)
Hold up play 8/10 (is excellent at keeping the ball and playing others in)
Finishing 9/10 (not many better in the league)
Work rate 8/10 (don't generally seem him making bursting runs)
Natural fitness 7/10 (picks up injuries)
I think in two years we could have a 8/10 header and an 8/10 finisher on our hands, to go with the rest of his impressive abilities already. He easily has potential to be as good as Kane is, and without the injuries too.