I dunno about no top 10-20 of all time shyt but, if healthy, him and TMac probably make the Finals in 2001 and lose to the Lakers. After that it would come down to roster construction as that Magic team was light; it's just that the east was so trash in the early 00s that they could probably 2-man combo most of those squads.
Still, he was mostly a 21/8/6 point forward at his peak (not a 30ppg big time/aggressive scorer) so the evolution of him and TMac would've been interesting, especially if Hill would've naturally fell into that Scottie Pippen role. And, again, what the rest of that roster would've been.