Board Thread:General Discussion/@comment-4519633-20141022032431/@comment-25926288-20160418035939

Yep, totally agree with Hm.

Speed, Versatility, and Power. Emma has the speed, now the power, and the increasing versatility, especially with her time as Dark One. Characters like Zelena tend to beat Emma still in the speed stat and maybe still in the Versatility stat, but Emma has the power. These two are closer than Regina and Emma. Regina doesn't have the raw power to match and she noted that in season 3 and it was shown in season 2 and onwards. Regina's pretty much stuck with versatility and speed (and she's amongst the slowest casters).