Viburnums benefit from cross pollination (no matter what their name really is). Viburnum nudum 'Winterthur' is a cultivar of Viburnum nudum. It is a reliable cross pollinator for any Viburnum nudum species plant or cultivar. 'Brandywine' is one such cultivar, so yes they should go well together.

'Blue Muffin' is a Viburnum dentatum cultivar. It might cross pollinate with the other two provided they bloom at the same time. Blooming at the same time is critical.

Cultivars that should help 'Blue Muffin' include 'Moonglow', 'Autumn Jazz', 'Chicago Lustre', 'Perle Bleu' and 'Morton' (also known as Northern Burgundy).

I think I heard someone say that Mapleleaf vib. might also be pollinating their blue muffins as well. I have v nudum winterthur and they dont bloom the same time as blue muffin

I was able to buy V. nudum 'Earthshade' as a pollinator for V.n. 'Winterthur'. Both bore berries, but 'Winterthur's' started out quite spectacularly coral colored. I deal a lot with 'Rarefind Nursery' not too far North of me.