Do you have any other game cause if you do you can trade your first starter into that game then erase your game then choose another starter, there is no way other than cheating which you shouldn't do that you can get all 3 starters other than trading from firered.
Charmander
i am personally a fan of exeggutor
The best Starter is Squirtle just in your game have a Fire Or ice type.
squritle is the best cos at the end of the game u can get ricu and it has the best defence and attack also it is best 4 the gyms
it depends on the game. In firered and leafgreen its charmender, in pearl and planium its turtwig, in soulsilver or heartgold its todatile
Based on the facts, venusaur is the weakest, so squirtle would be the best because charizard is the best starter besides swampert.
dragonite is the strongest dragon there is in leafgreen
I think its moltres
I guess Zapdos
legendary Pokemon are the best Pokemon in Pokemon leafgreenthere are 7 legendary Pokemon in leafgreen1.articuno2.zapdos3.moltres4.mewtwo5.raikou6.entei7.suicuneyou would only get raikou if your starter Pokemon is squirtleand entei for bulbasaur,suicune for charmanderanyway i choose mewtwo
Id say articuno becuz hes ice ice baby
the best Pokemon are mewto and the rarest Pokemon ever mew.