Well, KitPvP is, interesting, most fighting game modes in Minecraft tend to be, well a little toxic, but as the comments above said, it's a well-known community and everyone would be willing to look out for one another.
I haven't played the other games, I'm actively on Survival and the community is really calm and relaxed to a certain extent, I feel Survival is the best. But I might change my mind if I ever play the other servers.