Very interesting list, a few random thoughts and highlights from me:
- Never seen Simipour at #1, Panpour almost top 10 and Pansear that high, so kudos for your original taste. Big Gen5 fan?
- Slowbro at #3 and Chandelure at #4 make me super happy, love their designs and personalities.
- I like how you have a very nice mix of different evolution stages and generations, makes it super diversified compared to other lists.
- Did you consider Mega-Evolutions for this? It's the only thing that's missing, and there is some cool designs I think.

All in all, super solid and original Top50!