I can't think of any morphs or combos that wouldn't be improved upon by adding the vanilla gene, as long as you like the idea of a brighter snake. There hasn't been too much done with the vanilla gene yet, but everything I've seen so far has been gorgeous. I can't wait to get a pair of vanillas to start adding to all my combo projects. I've been saying that since I first saw one, and back then a lot of people didn't think much of them. So far, they've gone from the "bleh" lists, to the "I'd like to work a vanilla into my project, one day" lists. I think that once the vanilla gene starts making an appearance in a few more combos, people will start seeing the potential and want to move vanillas from the "I'll get one, one day" list, up to their must have category, up there between enchis and pastels.