Gave about half of this round a spin, seems like this round will be my favourite so far, some good tunes for sure! Third description is not mine I think, but so far it seems a bit universal, depending on one's definition of epic and catchy.
I think the first description fits my song very well, which is Reign by Suspyre. I mean, it starts out with some clear symphonic music, goes into prog metal, with some jazzy(?) saxophone solo's inbetween and then suddenly, prior to the main solo section, a little folksy jam, only to end the whole thing with something that resembles electronic music. My initial reaction to the song (and a lot of the band's material) was similar. They have more straightforward stuff, but also stuff that is weirder, but much of their material has a fresh feeling to it due to having unexpected elements.
And as for the last round: Oh well, I really like Agnes Obel myself, but can see what bothers you here. To me it seems more stylistic rather than a straight "natural" accent. Many pop artists of varying nations sing similar to this, actually (though I am not sure I would call Agnes Obel pop, I do actually think she is one of the more popular artists sent in this roulette, bar the really famous ones like Slipknot). I knew I was taking a "risk" though. Oh well, still tracking ahead of myself, which will become more difficult now.
I gave most songs a spin and I overall liked this round, much better than last years ballad round for me personally. Also, if you like Snuff, there are at least some other Slipknot and Stone Sour songs worth a try (Vermillion part 2., Bother, Circle, Danger Keep Away, Wicked Game cover etc.).