i don't know how high lvled up are the E4 in this game, because i never completed this game, but my advice is this: 75 or 70 all pokemons ;). as how lvl ur pokemons, man fight STRONG WILD POKEMONS AND USE THE VS SEEKER TO WIN MORE MONEY, and in the meantime u will get lvled up pokemons and lvled up money ;), and btw USE AMULET COIN ;) so gl, pal ;).

ok,so my main team is this: Murkrow lvl 27, Luxio lvl 29, Gastrodon lvl 35, Prinplup lvl 35, Ponyta lvl 35 and Bidoof lvl 12(he is pratically the hm slave).

my spot at the game: 2 gym badges, training on rt 210 (atm) and put all the "main" pokemons until lvl 35. so, who do you guys think that i should get as a 6th pokemon party member(temporary) btw, i got the happiny from the egg :P, and i got a wild chansey, and a wild cleffa, and i have a SHINY BUDEW on the box, but i'm only waiting until to reach to eterna city to evolve a "friendship / happiness" with my shiny budew and put him as a 6th pokemon member, and evolve into a roserade with a shiny stone, so who do you guys think i should put as a 6th pokemon member and why? and where i can find them, please tell me :), thanks.