Spider and villager are not the easiest kits to play correctly, but if you can master them they become insane (spider) or pretty good (villager.) In my opinion, this is how almost every kit should be designed. When you compare these kits to kits like creeper or skeleton horse which are both very easy to pickup but have a very low skill ceiling, it's obvious to see what kits people like more. But not every kit can be like this. New and casual players dont want to br forced into playing extremely hard kits. So there should still be a few kits that arent hard to get good at. But these kits shouldn't be as powerful as the high skill kits. I think a big balance update for ssm is due and this is how it should be designed.