Here's the thing with MiniDV tape: The tapes are manufactured with built-in lubricants that keep your video heads running smoothly. While there are some differences in tape quality in general, of much greater concern is that you choose a tape brand and use only that brand in your camera. The reason is that the lubricants from the various manufacturers differ in their chemical make-up and do not necessarily work well together. Using different brand tapes all the time increases the frequency of data errors and runs the risk of clogging your video heads.
Having said that, I tried TDK tapes early on and was not happy with them; too many dropouts. I personally settled on Maxell brand and have had excellent results -- use them in all 3 of my cameras. Sony may be good as well, but I haven't used it.