Strangely, as I like some other British fusion of the time, I've never really checked out Nucleus. Looks like I now have some good places to start.
I don't remember much about hearing Jon Hiseman in Colosseum in terms of complaints, though I did like hearing his jazz work with Peter Lemer, and I guess he's on Things We Like, which I have yet to score a copy of. John Marshall is a lot to take, but overall his playing I enjoy even if it is a bit heavy-handed; Wyatt didn't really gel with the Dean-Ratledge group very well rhythmically (so I think), and I can't stand his singing so he's a bit out of the loop for me. Phil Howard is an interesting character; I felt on hearing his work with Dean and the Softs that he didn't have balance, but maybe that developed in other contexts.