I don't think either of them made good solo albums. I do agree with foreverblue though that at least Roger was trying for something meaningful. Dave seems to have just hit autopilot for the most part, but then again his strength is in his guitar playing and his albums do have plenty of good guitar playing.
All in all I'm sure most of us can agree, they were better together. Roger was the idea man and Dave was the musician and separating the two makes for a woefully incomplete yield. The needed the other to balance them out. Because without that check, Rog's music is all ranting, no music, and Dave's music is all noodle, no concept.