Yes, yes, it's very nice to see the first few replies being virtuous and noble and whatnot. I'm not going to entirely play ball. Sure, many games I hate - such as Borderlands - are enjoyed by a great many people, and that's fine. I am not the arbiter of personal taste. But that's not what this thread is about, and there are some games I find quite beyond defence.
Skipping to the end, I'm going to call out Steel Battalion: Heavy Armour. I...I cannot adequately express my utter loathing for this poorly-conceived, poorly-made gimmick-fest designed to help promote the consumer beta-test dreck that is the Kinect, ruiner of everything it touches.
The original Steel Battalion - and I have one of my multiple controllers sat on the table in front of my right now - is a true classic. It's a "Concorde" moment in the mech genre, one that will be rarely repeated, if at all. It isn't a perfect game, but how often do we see such intricately-made no-nonsense simulators made for genres other than flight? I adore it, and when I heard rumour of a 360 release I was begging for a HD upgrade to make the HUD elements easier to work with, and increase the viewport size. Hell, a sequel that supported the old controllers would have made me buy a 360 on the spot.
What we got was a game that tried to do what the original did, with the same claustrophobic atmosphere, but using a bloody motion controller that doesn't work properly in even the most basic games, let alone Steel Battalion! Its dreadfulness is beyond description. That it had potential as a concept kills me. That it might have killed the franchise is even worse. Heavy Armour could have worked on PC, given that it was simplified from the original, and even if Capcom didn't provide controller support, it would have been patched in by someone.
I hate it, and I honestly believe that it cannot be defended as a functional, enjoyable product. If it were deleted, we would lose nothing.