Mortiis. I still love his old work and respect that he felt like chaning style, but the newest record really isn't any good.
For the record, Mortiis used to make long, sombre pieces of dark, medieval ambient music which is, in my book, some of the most evocative music ever made. Then he changed style into more uptempo, industrial-inspired rock, and the first record made in that style was actually really good. However, on the latest record almost all the magic that made his music great was sacrificed in favour of a, to my mind, uninspired, wannabe industrial sound.
I still respect the man and understand that he had to change style, but I just wish that it was executed more elegantly.