Imagine you're a trainer in the world of pokemon. There are no tiers. Pokemon stats vary and depend on their training, not their species, just like the anime or manga. What would your team be? With and without legendaries (since legendaries are obviously stronger than regular pokemon in the non video game Pokemon world.

Non legendaries
>Gengar
>Raichu
Unsure about the others. Prob wouldn't want anything stinky or poisonous like Garbodor or Muk. Also I can't imagine owning a Dugtrio and destroying every floor.

Legendaries included
>Mew
>Celebi
>Jirachi
>Manaphy
>Victini
>Hoopa
I love the fairy legendaries, but I'd also consider Mewtwo, the beasts, birds, Deoxys, and Darkrai.