Thread-title fooled me, thought it was going to be about Kasper Dolberg this. Well done OP.
Ah well, anyways, yeah Kane is very, very good but he's also got his limits. For instance he's seemingly a very slow starter (two seasons in a row now) and he's also yet to prove himself in Europe (both for club and country) and also for when the going gets tough. I think they more or less all have that to prove at Spurs still (including Eriksen and Dele Alli) which is also why they've still not really won anything.
I don't think he's in the Suarez/Sanchez-class either (at least not yet) so I'd defo have one of those ahead of him. I'd probably also have to include Robert Lewandowski in there. And Griezmann.