I've avoiding mentioning any current gen releases but I am sure in years to come I will have more to add to the not played pile (I'm looking at you Red Dead Redemption, Mass Effect, Uncharted, Fable 3 ....)
Anyhow back to the letter H only 2 titles for me.
Half Life 2 (Various)
I completed the first game on my ageing PC but the 2nd game crashed on me & I've not been back to it since.
Hmm Orange Box Xbox 360 ...
Heroes of Might & Magic (PC)
I just never got the appeal of this western attempt at a strategy rpg, the eastern shores of Japan ruled the genre. Although I do note that the recent years the tide is changing ....