The issue here is that many of the series are pulled down by lackluster entries... I mean first 3 Crash games, are amazing, some of my favourite games ever however, after the PS1, they kind suck. Jak and Daxter 1 is superb, the others are weird open world things and not like 1 at all, so not very good.
Based on the quality of games in the series, how I enjoyed them and all that, the best platformer (outside of Mario) ever made is:
Ristar.
Hmm, pie.