C9>MIBR>LEV>G2>NRG>100T>KRU>FUR>SEN
C9 has such an INCREDIBLY high ceiling. They have a higher current ceiling than G2 tbh. But, they suck, that's the issue.
Based on the highest ceilings I would rank Americas like so
MIBR, C9, LEV (I think they have peaked, I do not see them getting better than this with current roster), G2, KRU, FUR, SEN.
(Ceiling, not current ranking)