Best cut of meat to pair with Gorgonzola?
I think this depends on the type of Gorgonzola.  A Gorgonzola Dolcé has a milder, sweeter, less-blue flavor, so it should probably be served with a milder steak, like a Filet Mignon.  A stronger, more traditional Gorgonzola should probably be served with a stronger flavored steak like a Skirt Steak or a Ribeye.  If you flip the combinations around, one of the flavors is going to be lost.

I'm not familiar enough with Venison or other game to comment on their compatibility with Gorgonzola.