I was gonna go with the grass starter instead of fire since I was gonna end up with a Chamander, Pyroar, and Torchic anyway but after seeing the second forms...The ugly frog actually turned into something cool. Huh, normally the ugly ones just get uglier...
So-
Charizard
Blaziken
Pyroar
Frogface
FossilTrex
and hmmm...I don't know the last one yet. What other pokemon could destroy my chances of ever beating a Water gym leader? Maybe I should just grab the first electric type I find to slightly salvage this team.
From what I have learned from the games is that to roll with what will be the easiest. The first type is a bug, so kill it with fire, you are fine. Then again any type is great since bugs all generally suck. Depending on where Litleo is at, you can have it as your backup to smite the first gym, if one were to go with another type as well.
I don't see the point of doing such , even though I prefer water types, that would compromise a team. I mean after a while it would work, but in terms of a Water leader, you need a dual type that will break the difference or be a weak point for a water type, like electric. If the next gen has that, it will be easy for you.
I used a Lugia against a Dragonite with Thunder against Lance in the Elite Four and it was easier.