What differentiates the two Pelham's? It's funny...this kid I grew up with in Bed Stuy moved to Roosevelt for HS. He used to always talk about how run down it was out there and he didn't exactly grow up in the best neighborhood.
Pelham Parkway is just another part of the BX, down the road from Fordham
they do have houses and park out there, but I can't vouch for any public schools around there, would probably wanna send the kids to private school
as far as Pelham (Westchester) is concerned its basically in between Mt. Vernon and New Rochelle geographically and for all the other stuff we're talking about