I like the anti-microbial Under Armour, but I really don't have much to compare it to. Apparently, something in the material kills the scent-producing organisms that live on your skin. I can tell you that it's a whole lot better than regular spandex or cotton long johns. Even the coldgear is okay for warm weather, b/c it wicks away the sweat. On hot days, I just wear the compression shirt with nothing else.
(this is the Armourblock antimicrobial logo - so look for it on the UA gear before you buy)
Have heard a lot about the X-static (X-Scent)stuff too. Also anti-microbial (scent free).
