different primary roles - one is a support chopper with attack capability , and the other is primarily attack/hunter Anti personnel and tank but has no transport options. Better to pose the matchup of

Huey Cobra vs. Apache or Lynx vs. MH-60L DAP Blackhawk

Lol I thought it'll be about Unix :)

Assuming your talking pure shooting power and all around badass-ness... i'd have to say the apache w/ the longbow system. if you hear that thing your ten minutes too late. the Lynx is a nice stable platform for almost anything a helo can do. kinda of like the UH-1 Huey.

Apache

Cobra!

check out my other comparing posts with the apache or the huey,
lynx or blackhawk

lynx

Apache, cos its got a 30mm High Explosive chain gun that is controlled by the pilot's eye, 12 laser-guided Hellfire Missiles that can each turn a tank inside out, and 2 rocket racks , effective against personnel or vehicles, AND an automatic SAM missile evasion system that could throw any missile off-course. The Lynx doesn't have anything that could rival it, it is the ultimate attack helicopter