As far as TV goes I can take Whedon or leave him. I liked "Buffy" when I bothered to watch it and thought "Angel" was "okay." I never saw "Firefly" or "Serenity" and couldn't name another show of his if I tried.

As far as "X-men" goes, I think Whedon is easily the best writer on the book since Claremont was at his peak in the late 70s and early 80s.