Similar characters in many ways. Bette doesn't have enough appearances tbh though. For example, her telepathy seems to be strong, but Selene's telepathy has been presented as magical in nature. Hard to say exactly how Bette will handle it.
And Selene's life draining is a little different from Bette's psychic energy draining. I'm not sure Bette's drain would weaken Selene to the same extent Selene's should weaken Bette.