I dont mind Faerun, but do we need a look-a-like? Faerun does the potluck setting just fine, though I have no read enough to know what was done with it in 4E since I do not play that version.
Faerun and Golarion draw on very different influences, though, IMO. Golarion has a very wild and wooly pulp feel; the influences are guys like Leiber, Howard, Burroughs, and stuff like that. There are vast swathes of stuff that feels like Arabian Nights.
True; they threw in a lot of cliches on purpose: the French Revolution country, the Trannsylvannia look-alike, the Vikings, the Ice Age lost world country, Byzantium, Egypt, etc. But they did it with a fun, familiar pulp flair.
Forgotten Realms, on the other hand, doesn't feel like pulp fiction. It feels like mass market high fantasy, of the type Terry Brooks or David Eddings writes. Salvatore and Forgotten Realms have grown together symbiotically into the same style.
I'm not trying to make a value judgement here (or rather; I'm trying not to

) but clearly the feel of sword & sorcery pulp and high fantasy novel series is quite different. Both are "potluck" as you say, but that doesn't mean that you get the same stuff at all.