... never see grain in any print I make from 4x5 regardless of the film so I choose 4x5 film on other criteria ...
Yeah, I have simply not gotten grain that stands out visually in prints from any 4x5 negs, pert near invisible. Sure whip out an 8x loupe and I can find it, but with an unaided eye, it just hasn't been an issue with any film I've tried.
Format makes a huge difference and 35mm is for me a different animal, because to get to a 16 by 20 it is at least 16 times enlargement plus any cropping. Compare that with a 4 x 5 negative that's only a 4x enlargement.

