One more thing:
The reason we debate things on the boards is because we know that often times in the comics one character will be written down to prop up another or a character may be devalued for the sake of story progression. That's the reason on the boards the actual feats a character pulls off takes a higher priority than anything else. If an issue states than Jean is the more powerful than so-and-so, or some other such nonsense, that claim holds no credence unless she has the feats to back it up...and she doesn't have the feats in this instance when compared with Emma. Most of the rebuttals against my Emma arguments had to do with panels of somebody talking about how powerful Jean is because she has a serious lack of feats. Her limits have been defined in plenty of stories and they are far below Emma's feats.