My longest, unfinished fic is for the Harry Potter fandom - 164 pages (Verdana, 10 pt., single spaced) and counting, or maybe not counting, because I haven't expanded on it for years :p It's a sequel to another one that was 77 pages long.
My longest Archived L&C fic is 90 pages if cut-and-pasted in Word (177 Kb). I've also written and posted one that was 127 pages, but I never sent that to the Archive - it was a bit controversial, thought I may have to fix it, never actually reached a decision about it.
Apart from those, I usually write short/very short stories.
