Can't compare the two in any meaningful way. I can only post my own experience, which is that every single Ric I've ever played has been a dog. I'm quite prepared to accept that I've just been unlucky, however.
I owned a Euro4 Spector for a while and loved everything about it except the colour. Great sound, great ergonomics and playability, great build quality. Very versatile too, and really what an active bass is all about. I'd get another one today if I could justify the expense.
Mind you, a lot of very famous songs have been recorded with a Ric and they do look amazing. In an ideal world I'd have one in my arsenal, but I'd need to spend time playing as many as possible to find 'the one'.