Middle names dilemma?

I think Jessica Willow sounds best. Willow is quite an unusual name, so it definitely makes your name seem less common. I love the name Isobel, but I don't think Jessica Isobel flows quite as smoothly as Jessica Willow - there are a lot of S sounds in the names, and I think they sound a little awkward together. Jessica Belle would be a cute option though. Personally, I would avoid using a middle name that ends in an A, because it's too similar to the end of Jessica, and the repeated endings don't work well together. :]