User blog comment:CNBA3/Fairy Tail Civil War!/@comment-27281341-20160406132206/@comment-27281341-20160408153026

It's not like i have too much faith, it's just that, based on the most recent chapters, Natsu has been getting extreme feats that put him above almost anyone in Fairy Tail. His most recent showing in chapter 479, where he evaporated that lake, was calculated as a Mountain busting feat. The only other proven, via calculations, Mountain Busters in the series are the dragons and Zeref. All the other top tiers are City busters. The difference between the 2 is quite big. So, as long as Gray doesn't get any new good feats, he pretty muche gets stomped hard by Natsu.

As for the others, Mystogan vs Pantherlily is an incredibly one sided much, same as Lucy vs Loke (in Lucy's favor) while Erza and Laxus beat their respective opponents with high difficulty.

Now, if Gray learns about Natsu, chances are he will get angry at 1st, maybe he will attack him, but eventually they will reconsile. If the 2 fight, Gray's only hope for winning in an 1v1 match is if Natsu holds back. I don't think other members of FT will join Gray. I just don't think Erza would do so. Nor would Lucy. Gajeel, Laxus and all have a much better relationship with Natsu than they have with Gray. Wendy too. Makarov might know about this and so i think about Mavis. Gildarts is gone, but he would definitely support Natsu and Mystogan is no longer here. Not that we would pose a problem had he been in Earthland. Only Juvia i see siding with Gray, but even she wouldn't do it happily.