As an interesting aside, the guy who is now running the new
Battlestar Galactica on the Sci Fi Channel is a Trek alum who was basically outvoted on everything he wanted to do with Voyager and, for that and other reasons, left Paramount to do this project for Sci Fi. Apparently, a lot of what he wanted to do with Voyager is being done on this show instead (ship, all alone in uncharted space, trying to return to some far off destination). Given the quality of this new show, the persons in charge would've been well served to let him have his way.
Enterprise I had much less of a problem with -- it took a while to find it's legs as a show, but I thought the 3rd season was reasonably entertaining and the 4th season was fantastic. But then they cancelled it, as networks do with most programs I find enjoyable.
For "Worst Spin Offs," I've got no choice but to go with "Daria" from the immortal (and endlessly funny) "Beavis & Butt-Head." Of course, nothing could touch the brilliance that was those two.