[quote=@Joshua Tamashii]
Very possible. Though, I still see Devil-Slayer as more powerful then God-Slayer, since the feats a single Devil-Slayer has pulled off all out due to combined feats of three God-Slayers.
[/quote]

Again, that points more to the level of the mages themselves than the magic being used. Orca and Chelia are God Slayers, but were pretty much chumps compared to other mages in terms of things like the amount of magic power they had, their fighting ability and experience, and so on and so forth. Silver being able to freeze a landscape instantly and put Natsu on ice tells me he's a very strong mage, not that his style of magic is inherently superior. If you gave the gun mages' little girl Natsu's magic, she'd probably be able to light candles and make fireworks. If you gave Gildarts Natsu's magic, he'd probably burn everything within fifty miles to ashes just by sneezing. Also, see the edit I made to my last post here for more on the chapter where Silver's magic is referenced.