The Asus Rog z270i looks lovely!!11!!1
That said given it won't be seen in my build (covered by huge cooler) not sure what benefit it would have over the asrock z270 board and I prefer the placement of the sata ports on the asrock.
Totally agreed on the looks! The real reason the z270i has me all hot and bothered though is the dual m.2 slots, on an itx board! My next planned build can hopefully go ahead with no 2.5 or 3.5" drives now, just one fast pcie drive and a cheaper m.2 sata one alongside it.