Everyone has their own opinion. IMO, Roger was the "stronger" creative force in terms of song writing in Pink Floyd, but it's clear to see from the solo records he wasn't the ONLY creative force. I find his solo material occasionally interesting, but totally self-absorbed, overbearing and lacking the musical innovation and variety of a Pink Floyd record. Roger is a better songwriter and coordinator IMO, but solo wise, I enjoy David's solo records and Roger-less Pink Floyd to Roger's solo stuff. Voice wise, I don't think i could stand to hear Roger sing for two hours.
Wip, wop, wim and wham... indeed!