I've never been much of a writer but I’ll give it a shot. Mids on both phones are neutral. The x1 sort of takes a backstage due to its bass and since they are so wide in soundstage they never really stand out. The Alphas Dogs take the cake on the treble though. They are very accurate and just sound more "right to me" especially when I’m using FLAC files on my home setup.
Now the tricky part is explaining the soundstage. X1 being an open can the positioning is very wide. Pin pointing footsteps using CMSS-3D in FPS games it was very easy to pick up how far my opponents were. In fact I was pretty blown away when I heard helicopters fly above my head using the elevation filters as I’ve never experienced that before. The Alpha Dog is a closed headphone and things seem closer playing the same game (BF4 helicopters don't sound farther away during flybys). Don't get me wrong though as this is widest I’ve heard from a closed back headphone coming from HD280 pros that I used for 7 years. It really does fool you that it feels like an open can and I can live with the lower amount of space due to the passive noise isolation it delivers (Noisy Gaming rig with a ton of cooling fans and overclocked video cards).