2D: Rayman: Origins/Legends, with special mentions to Klonoa 1&2 and the Donkey Kong Country series.
3D: The original Spyro trilogy, with special mentions to the Sly Cooper series, Jak & Daxter: The Precursor Legacy, Maximo 1&2, Donkey Kong 64, the Ape Escape series and I-Ninja.
Honestly, don't think those would change much at all even if you included Mario, besides a mention of Super Mario World under the 2D list (tho it still wouldn't unseat Rayman).