Eduardo is actually a good comparison.
I think Nketiah has improved considerably since last season. Overall game is much more polished, passing, hold-up and link-up play is better and he looks a fair bit quicker and stronger in his last few appearances.
Merson said in the post-Sunderland analysis that he understands that Eddie wants to play, but he'd advise him to stay with us for a couple more years and not rush things with a move. Hope Eddie takes his advice.
If it wasn't for Lacazette's surprising patch of form, he'd be making a serious claim for a spot in the PL first XI as well.