I think Heroes would win more by a slight margin over the X-men .
Tough fight, lots of different factors. Team1 is good and strong but not really that versatile. while the X-men, got a nice assortment of skills and powers and they got team work.
Cyke could do some nice dmg from a distance..
Angel can take to the air and send a barrage of blades down...
but Herc, She hulk, Iron Fist and deadpool are pretty dangerous imo...