I've owned and used a variety of brands. I honestly don't see one brand as being significantly better than any other. Look more at the features that you want.
I wanted an inflatable
with a built-in harness and crotch strap. Found an inflatable
with a built-in harness on sale
, so I bought it and added my own crotch strap.
Like boatman said, go to a marine
store and look at some different ones. If there aren't any boating
stores nearby then online would be the obvious choice. Once you know what you are looking for, online is usually cheaper, but then you have to wait, and you have to pay shipping
local you get it quicker (immediately!), but you usually have to pay sales tax. So you take your choice.