Venusaur: 12
Charizard: 10
Blastoise: 10
Meganium: 10
Typhlosion: 10
Feraligatr: 13
Sceptile: 10
Blaziken: 10
Swampert: 11+
Torterra: 10
Infernape: 11
Empoleon: 10
Serperior: 10
Emboar: 10
Samurott: 10
Chesnaught: 7
Delphox: 7
Greninja: 10

You seem to be doing a stellar job at that already, so I'mma leave it up to you!