Yeah for my money it is the best written Sci-Fi show ever to air on American TV. if you can get past the early use of CGI(Hey some one had to be first)and the fact that it takes a few episodes to find it's feet it is full of good acting,an amazing story,and very complex characters and situations. I can still get into debates with people over if Londo was a villain or not and to tell you the truth I am still not decided myself.
Oh and it contains the greatest moment of pure awesome ever seen on a Sci-Fi show...
"Now get the hell out of our galaxy!"