Well this is one way you will need two Nintendo ds's and a platinm and diamond or pearl or platinum, just get a starter Pokemon in diamond in pearl or diamond and trade it into platinum, repeat this until you have all starters! If you have an action replay though, You can go to trainers who have the Pokemon, battle them, then capture their Pokemon!
Pick him as your starter
Get a cheat device. In other words, you can't do it legally
still the same Pokemon as d/p chimchar, piplup, and turtwig
There is no way to catch a wild Torchic in Pokemon Platinum. The only way to get one in Platinum would be to transfer from the Generation 3 games (Ruby, Sapphire or Emerald) where it is a starter Pokemon.
Sinoh jhoto kanto and hoen the zephyr region is the kanto starter's
You can get another starter if you get all the sinnoh pokemon. Proffeser rowan will ofer a johto starter.
Global Trade Station
you cant in platinum but you could trade from Diamond and Pearl or another Platinum.
First is 567pokechhskshks
starter Pokemon
check it up on neoseeker.com and you might find it.
Chimchar, piplup, and turtwig.
trade with friends and/or wifi trading
There is no "worst" starter, it's all about your personal preference. They are all good starters. The most challenging is turtwig.
Pick him as your starter
Piplup
You either choose a monferno for your starter. Or if you choose a turtwig as your starter your rival will have monferno.And you can find it in south on route 212 and ranger jeffery will have it. That is all the way you can see monferno in pokemon platinum.