I think that's a lot better than the current system we have, but I think it still rewards "abuse" like selectively sparring only very poor sparrers. With what I'm suggesting, you'd be getting less than a single point on the leaderboard for sparring anyone who is negative, so it's not extremely appealing.

I'm 10:1 right now, so beating me would get someone 10 points. It'd take them 20 spars against 1:2 noobs to get that many. I think people would much rather try their luck against beating the better player, which is really healthy and encouraging for the spar community overall.

I didn't play actively when the hats were around, but everyone claims that spar hats stopped because the admin who was (manually) giving them out quit? That's just stupid, I know that it can be done manually and it should be done manually.

Yes, that'd also be good. However, again, if the changes that I proposed were put into place then you'd only be hurting yourself by making alt accounts.

Basically, your most realistic chance at becoming #1 would require you to spar actively and on a single account and it would incentivize sparring against the players with the best ratio overall. There's really not any realistic and effective way to manipulate a leaderboard like that. I guess you could have some really stupid player with a high ratio pause against you numerous times, but that problem takes care of itself because they're gradually tanking their own ratio.