Use the pokeradar on route 207.(pokeradar obtained after you complete the sinnoh dex)
Go north from Oreburgh with your poke-radar. It is rare, but possible to see. Lvl 7-12
Route 36 and 37
In order to get stantler in Pokemon Pearl, you have to beat the game first. Then, I think that it is on the island on the far upper right corner. Take a boat by snowpoint city after beating champion (Cynthia) to get to the island.
You cannot catch a Stantler in Firered get one from Pokemon emerald or Pokemon colosseum.
Both are equal in encounter rate, but maybe an expert can decide...
NO you cant catch syther in Pokemon pearl
You can't catch a charizard in pokemon pearl.
i don't think so i am not sure
Pokemon pearl
Stantler is a Normal type pokemon.
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond
you can certainly catch Dioxies in the game Pokemon pearl