The Kaffe quilts I think are most stunning blend color and pattern with very little or no background or "calm". Everyone's taste will vary, but I think that his fabrics are best showcased like the equivalent of a mixed flower border in full bloom, with just a riot of color. I do like either a hot or cool palette, not necessarily a full rainbow spectrum mixed up in one quilt.
A quilter who I think is pro at this type of quilt blogs at Exuberant Color. Of course if I linked you here, I would get my hand smacked for trying to promote something, so I guess you will just have to google if you'd like to see her take on Kaffe Fasset.
You could search on Pinterest for Kaffe Fasset -- I for one have a board devoted to ideas that I'm holding on to for when I finally get around to cutting into my treasured stash of his fabrics.