I've got a Dahon Curve SL and love it.
As Mike says, it's not quite as small as the Brompton when folded but, in my view at least, is much cuter (presuming, of course, that cuteness is one of your primary deciding factors
). It may also be lighter (in this version rather than the D3) I think.
I don't find it at all fiddly to fold.
Used to have a Ridgeback folder, which was lovely too (that was a shiny silver colour
), so, of your two choices, I'd go for the Ridgeback (which is most likely a Dahon anyway).