I'm one of the few (apparently) who liked Voyager, but I couldn't stomach the new series. I tried to watch 3 or 4 episodes in the first series and an occasional new episode here and there, but it never felt like Star Trek to me and overall I just thought it was blah.
Nemisis was terrible, I can't say it was much worse than any other Star Trek film as they all rapidly declined in quality from the 1st.
The new BSG series on Sci-Fi is freakin incredible, I only got to see a couple of episodes of Firefly before it was yanked and from my understanding, they were aired out of order and minues the pilot episode...which would explain why many couldn't follow what was going on. The trailer for Serenity looks awesome and I eagerly await the release of that film.
Bad series, bad movie...nothing to do with oversaturation of the franchice, just too much crap