Alright /vp/ here are the Top Ten (in my opinion) most powerful Trainers (in the games)

>10 Red
Over Rated, but his pokemon are of a very high level, that alone puts him on the list
>9 Cynthia
One of the most powerful teams strategy wise
>8 Lance
this fucker rose to champion and actually did shit in the main story
>7 Alder
>three bug-types on team
>still resonably hard
>6 Steven
Stood up to team magma/aqua along side you, millionaire, got shit done
>5 Giovanni
His followers didn't accept the fact he left, that's enough convincing for me
>4 Koga
Only gym leader to become an elite four member
>3 N
If it isnt obvious why hes number 3 then you need to play the games
>2 Nate/Rosa
they beat every gym leader, met almost all of the legiondaries up to that point
>1 Trainer Joey
Top mother-fucking percentage