Wins makes more sense though because with more people, though rank 30 000 might involve having 50 wins right now, in the future you could need 500 wins to be in the top 30 000 (just random numbers
).
I don't think having a separate hub for less skilled and newer people would make much sense. If you're new to the game, then it will be hard for you to win no matter what. But also, if you spawn in the main hub, and you're new, how do you know that this noob hub exists? Sure there could be some signs mentioning it's existence, but not all signs get read and it would be a lot more work for mods to guide people in the right direction.
Also, what about moderation? Would mods be able to get into these noob games no matter what? Then they could abuse this power to get some easy wins (though they shouldn't be allowed to, it would still definitely happen).
I think there are too many aspects to this sort of situation that wouldn't work well. Maybe it would help get newer players started in the game itself, it would make them worse in all other aspects (like knowing rules, and learning what can be considered 'good' at the game).