The worst type of channel to run has to be the one you don't enjoy making videos for. It's like a job, if you enjoy it, then time will pass quickly, you will enjoy going back to it.
Personally I've launched a gaming channel, and while it's a saturated market, I enjoy what I'm doing so even if I only got isngle figure views, I'd still make new videos. That said, even though I'm unknown at 22 subs, my videos get views and they get discovered through search because I thumbnail up, tag, and title well, etc. Then people seem to enjoy something about my vids because they stick around for a good %. So I know if I keep putting in the work, I can only get bigger! If I didn't enjoy the process now, I should already have quit!