BSG was a contender in its own right, I feel (the first two seasons). Or at least brought something new to the table. Farscape and Andromeda were *way* more derivative (though, Farscape did have alien puppets as main characters). B5 tries to make improvements to the Star Trek formula by removing warp drives, replicators, and transporters, but then stumbles again when it adds in telepaths and bad acting. Stargate? Eh, the movie was enough. Two shows seems excessive.

Science fiction fans are picky as hell, fear change, lament our underrepresented genre, but resent having our passions be applied to a wider audience. We also have a really bad habit of only watching shows long after they're out of production. The B5s and Andromedas may be derivative, but as I would guess, part of the reason we can enjoy them is because they try to derive from something we love. Nobody will have Data, Picard, or Spock again, but there's value in trying to mine something new, even if it is just trying to milk dollars out of a starved audience.