For Platinium:
Quilfish
Zangoose
porygon2 or porygon Z
Carnivine
Dunsparce
For Soulsilver:
Leafeon
Glaceon
Sheildon
Glameow
Stunky
porygon, 2 or Z
Turtwig
Chimchar
Finneon
Probopass
Dunsparce
If possible I'm willing to throw in my legendaries for other certain legendaries:
Celebi
Mew
Entei(Platinium)
Raikou(Platinium)
Shaymin
Jirachi
Darkari
Arcerus
Phione
Manaphy
Lugia (for Platinium only since I got one in soulsilver)