Hi,
Both are good in their own right.
David, should have become an actor a long time ago. Some of his work in film is excellent and deserves some credit. Of special attention is "The Man Who Fell to Earth" and then "Merry Christmas, Mr. Lawrence", and even "The Hunger".
Bryan did not want to do any acting, and he has always stuck to his own lounge singer thing ... and he is very clean and very good at it, and he always manages to put together some incredible musicians. But his work, is, hardly, new or experimental, or different ... it's just really well done and special work all around.
David's career in music is not something that we should ignore and not say a good thing about. Over the years, he has either gotten bored with his work, or he simply wanted to do more ... than just the same thing. And his creative stuff has always been interesting.
It will make a lot more sense to check David out, if you can find the VH-1 Behind the Music on David Bowie ... it helps clear up a lot of his work ... he is well read, studied and not your average rock'n'roller that will only do one thing, and not learn anything else! As such, David is a very good artist.
I enjoy both of them ... though "Country Life" burns up my CD or turntable a bit more than any David Bowie album! ... or playing "Amazona" out loud!