Joystiq:
We first saw Guardians of Middle-earth in action back at E3 this year, and it was quite impressive even then: Monolith has taken the PC-centric gameplay of the emerging MOBA (or DotA, or LoL, or even action RTS, whatever you like to call it) genre, and translated it over to a console and a controller. But since that first play at E3, I've gotten a few more chances to play the game at Comic-Con and PAX, and GOME (acronyms!) is even more interesting than just a console clone of the popular League of Legends and the upcoming Dota 2.
Source:
http://n4g.com/news/1074922/joystiq-how-guardians-of-middle-earth-innovates-on-the-moba-gametype