V. bitchiuensis crossed with V. carlesii is the hybrid V. x juddii - with much more heat tolerance, cleaner foliage, and compact denser habit. Flowers are slightly less full/solid than other selections.
I'd defy any of you to find a less lovely scent among all the fragrant species/selections listed. All good, all permeate the garden, and at least two different ones will yield cross-pollination and lead to fruit performance.
That is the one detail not yet emphasized. If you have one of a species, get another (non identical) so that cross-pollination occurs. Viburnums are poorly self-fertile, and you are only denying yourself, your garden, and your wildlife of their bounty by only planting one of a kind. Recruit a neighbor, if you don't have room for everything.
