how does Team Rankings work? is it the same system with HLTV rankings?
Both systems are gonna be flawed at least a little bit. It doesn't see which team is best at the moment like a power ranking does because the systems encourage amount of wins and don't take into account how good the teams actually are. For example, I don't think people will argue with the fact that G2 currently aren't the best team in Europe (or it's at least very close). However, since they won a lot before they weren't that good, the next best team has a lot of ground to make up for them to pass them on the rankings. So there's no best system for this, you just gotta look at the teams and decide for yourself who you think is better.