User blog comment:Omega natsu2/Fairy Tail Episode 216: When The Stars Fall, Review./@comment-24277053-20150117134339/@comment-7418318-20150117141043

"does that mean Kagura is stronger than Natsu?"
 * Considering how Kagura was able to fight Erza on equal terms I think it's been pretty much confirmed ever since the GMG that Kagura is stronger than Natsu (at least without LFDM and/or Dragon Force).