Whoops, I forgot about togepi and snorlax in Dream Park and Yancy/Curtis trades (Which is stupid seeing as I found BOTH of those myself yesterday on my Black 2 run. Go me.) Probably due to the fact those weren't in BW1's setup of Dream World before BW2
So, I've compiled a bit of a list for Dream Park possible BW1 exclusives. Feel free to tell me what to subtract, because this is just process of elimination from this BW2 run.
By the way, Atsync, maybe you should put that potential list of yours in your sig too, in case anyone else needs to check off some stuff.
Also, some results from my Black 2 run:
Chansey with Growl (Level up move)
Throh with Bind (Level up move)