Doran Dragon
Yilx
DougJustDoug
Harle
Magistrum
Mos-Quitoxe
Knirp
Kadew
In no particular order, these are my top 8. Had to make a cut-off somewhere. Lots of good art. Would be pretty happy with any of these.
Tried to base my preferences around the speed stat, the high physical defense, and potential viability of Intimidate and Volt Absorb.