It depends on what you're looking for. Are you more of an external user or internal? The bloom seems to be favored for clitoral stimulation and can be inserted. Vitality is designed as a rabbit, with more a focus on internal stimulation.
Basically, whats more important? Clitoris? Go with Bloom. Vag? Go with vitality. If we're only choosing between these two. The rest of the specs are the same (company, material, etc)
Hope that helps.