Who is/are your favorite character(s)?
G'Kar. Londo, Zathras, G'Kar, Garibaldi, Londo, Bester, G'Kar, Galen, Londo, Lochley & G'Kar.
What is/are your favorite season(s) of the series?
Don't really have one. The whole series is a complete story in itself. 3 & 4 of course have most of the really exciting an memorable bits, but that's just down to the way things are structured.
What is/are your favorite episode(s) of the series?
The Long, Twilight Struggle
Intersections in Real Time
Sleeping in Light
What are your favorite quotes from the series (one or two from each season)?
How about everything G'Kar & Zathras ever said? No? Seriously, There's way too many to narrow it down. Having said that the ones that stick in the mind include: Londo's "the humans knew they were doomed" speech from ItB, G'Kar's declaration of principles, "being nibbled to death by cats", G'Kar's post Narn bombardment speech, "a kind word and a 2X4...", Kosh as G'Kar's father, G'Kar's farewell to Ta'Lon & what Vir says he wants from Morden.
What is the one story arc or plot thread you would have liked to have had more information on?