I have to agree.
Haven't seen NCIS, but I'm guessing it's not very different from other law/procedural type shows (they all have their subtleties and twists, of course), and I am a bit disappointed with Supernatural's last 2 seasons. I's worth a watch, but I wouldn't recommend it over Doctor Who.
Doctor Who is great. Even among other sci-fi shows, it is fairly unique. The writing and plots of individual episodes and story arcs can vary, but it usually springs back quickly and even with the changes in the actors playing the Doctor the flavor of the show is never lost. Give the first season (series) of the reboot of a chance, and if you like that you'll probably like the ones that follow.
I usually watch Doctor Who in blocks. It's the kind of television show you can find yourself returning to again and again.