I like the dark mountain products. I use the Kodiak pre and recover as well as the whey isolate. Mtn ops has more products overall I just prefer the dark mountain stuff and like the way I feel using it.
I'll second the ON Amino Energy, but it is a hair different in it's bcaa content, and it gives me the caffeine jitters on occasion where the Ignite doesn't. On a side note, Ignite does seem to work for me for concentration, I made it though 1000rds of 10mm on a single stage without getting distracted by anything shiny
Another vote for dark mountain. I felt like mtn ops was like drinking a Pepsi or similar caffeinated drink. Dark mountain actually gives my ass a kick and go