I've been using Neocities for about two years now and Nekoweb for just over a year. Honestly if I had to choose between them I'd pick Neocities without any hesitation. For me, it doesn't have anything to do with the social media side of the site, as I rarely ever venture over to that side of things. I just genuinely prefer how Neocities functions, its website editor, the more polished feel of it, and the features you get for the price you're paying. (I bought paid tier accounts on both, but kept the Neocities one and dropped back to free tier for Nekoweb.) Also, when I do need to turn to the community for questions/advice, I've found in my own experience that the Neocities community is much easier for me to talk to than the Nekoweb group, but that's just a personal preference.