My short answer is that I think you're making a great choice with Juvederm in this area. The options include Juvederm Ultra, Juvederm Ultra Plus, Restylane, Perlane, Collagen, Radiesse, and your own fat, among others. The reasons why I don't like the others as my first choice in this area are:
Fat: obviously safe (it's your own fat), and what is left after about 6 months is permanent (around 50% of the injected fat is absorbed by 6 months). But you usually need some type of anesthetic, in the OR, to do it well, so there is more cost; swells more than the off-the-shelf products, so there is more downtime.
Radiesse: Great product for very, very deep parenthesis (nasolabial folds) but in my judgement better for areas that need volume, like cheeks or hands. More expensive that Juvederm, but still a nice product if injected properly by an experienced injector.
Collagen: becoming less and less utilized-- usually need a skin test and the results are usually no better than Juvederm, which does not require a skin reaction test/
Restylane: this is the big competitor, and I think many folks would use Restylane as their first choice which is perfectly acceptable and they can get very nice results with it. The reason I prefer Juvederm Ultra to Restylane is that Juvederm Ultra has more cross-linking (means it will typically last longer, at least in my experience), is softer in consistency while Restylane is a bit more granular, and Juvederm Ultra I find is a bit more hydrophilic (attract more water) which means it can plump up the areas that you inject it in a bit more.
Perlane: made by the same company as Restylane, just a thicker product
Juvederm Ultra and Juvederm Ultra Plus are the same thing except Ultra Plus is a bit thicker, thought to last longer.
I hope that helps, Good luck!