And finally, a split decision: one show that created much debate in the comments section...

How can you compare some of the shows on your list to Buffy the Vampire Slayer, then leave it off the list? — Joe

Buffy? Heroes? Lost? Those are just fantasy shows (not Sci-Fi) that the EW staff has had a dysfunctional love affair with as indicated by the magazine's coverage of each. — John King

Of course, you missed Buffy the Vampire Slayer [if a horror series like X-Files makes the list, then Buffy should have been a shoo-in!] — Sheldon Wiebe

Buffy is a teenage-dramedy-fantasy-horror — not Sci-Fi. — AA