I haven't played any Mayones basses so I can't comment on those, but IMO every Warwick I've ever tried except for the MiK Pro Series Star Bass was horrible, in both looks and playability. Of course this is just a personal opinion (just like all the other comments in this thread).
Edit: I liked the Jack Bruce Cream Reunion Signature bass too, but that was in the serious custom bass price range, so really it ought to have been good.