I've read some brief reviews around this site but nothing that's helped me to make my decision yet... both of these IEMs get incredible reviews for their price points and I'm pretty sure I'd be plenty happy with either of them... but why settle for great when you can have amazing?
My preferred sound signature is a clear and natural mids and highs with a little (or a lot...) of tight bass and sub-bass with good slam/impact. I listen to a huge range of music from americana to hip-hop to death metal to classical... basically anything except EDM. I don't like anything with recessed mids, so even if it has a hint of being v-shaped I'm out.
This is a backup/secondary pair, as I have a pair of Westone 2's that I am really in love with (despite their inherent lack of bass, which was mostly fixed by tip-rolling). If there's anything else I should be eyeing in this price range that isn't one of these, let me know that too!