all three starters and some other high level Pokemon that you've got mostly good moves though not necessarily types.
Legendaries and high levels and the losery ones would be the baby and basic Pokemon which havent evolved yet. allakazzam is the strongest it's over
Normally it would be Giratina, but with the special event its Arceus hands down
The strongest Pokemon in Platinum is probably Arceus, to get Arceus, you need a mystery event, but that event is finished now. :( The second strongest Pokemon would probably have to be Giratina, or probably dialga or palkia.
You can't stop legendaries on Pokemon sapphire Why would you want to stop legendaries anyway?
Ho-oh or Lugia is the strongest Pokemon in Crystal. Tyranitar would be third strongest.
There is no actual "strongest Pokemon", but if I had to decide it would be Arceus and Mew.
Sadly you can't as you can catch rare Pokemon fairly easily on Pokemon ranger and it would be cheating especially with those rare legendaries. Although you can trade heartgold, soulsilver, pearl, and diamond with platinum. You can also trade Pokemon from earlier generation games using your internet.
If by "strongest" you ment strongest Pokemon that would probably be Palkia if you ask me.well if you ask me i think it would be arceus which you can get in action replay.
The strongest electric type would be Zapdos.
More legendaries like Pokemon Heartgold and Soulsilver.
I would. There are tons more new pokemon, legendaries, and stuff to do than diamond and pearl. And you can go to the distortion world whenever you want to after you beat/capture giratina. It keeps in hooked until you beat the game. It's a lot of fun!
I would get Platinum