I was actually preparing to play Dragon Age 2. I kind of forgot why I didn't like the game...but then it hit me. This is of recent memory.
-The combat is a flailing mess where BioWare tried to straddle the line between old-fashioned PCRPG and console-style action-RPG, and they failed miserably on both accounts. Combat does look more interesting, but it's so over-the-top that it just doesn't suit Dragon Age. Oh and the challenge was removed from the first one and nightmare was a complete joke.
-The story is painfully disjointed, with the first part of the game a deliberate set of fetch-quests, the second the most complete but completely unrelated, and the third a rushed mess which really just makes you want to quit playing the game.
-The characters, which are much of the reason for playing a BioWare game, turned out pretty bad this go around. Characters are generally pretty flat, and while you can predict how they will respond pretty easily, you predict them as gaming pieces rather than as persons. Romances are even worse, where every character is utterly confused, due in no small part to the way all four romance options are bisexual. They aren't written as bisexual characters but rather are simply forced into romances with any Hawke (can still reject them, but the characters are written out to have a relationship). I still remember the names from Origins, but the 2nd one...I can only remember Varric and...Merrill (the stupid pixie elf mage)?
-Speaking of characters and story, there's a healthy dose of retcon, so if you paid attention in Origins and Awakening, you're going to be fantastically confused with a lot of the things that happen. One character in particular is a complete retcon and is basically unrelated to the original character, and this will likely cause a problem if you are playing a diplomatic heterosexual male Hawke (which is probably ~40% of gamers the first time through). Also, there are tons of import bugs, but those are more related to poor save handling in Origins/Awakening rather than in DA2.
-The new dialogue wheel is wretch-worthy. Not only are the options frequently unrelated to what you actually say, there are frequently three dialogue options shoe-horned in when one or two of them hardly even makes sense (I'll never leave you, Get out of my house, and...I'm hungry? The hell?). The game then proceeds to open or close doors depending on how much of each dialogue option you've used, but it's so insignificant that you'd never notice if you didn't play through the game 3 times.
-Graphics are a mixed bag. The game runs poorly and doesn't look particularly good, and I rather detest the new visual style. According to the team that made DA 2, they were trying to go for a "water color" theme. Oh, you mean like GUILD WARS 2?! There are a lot of really obvious things done to save resources; for example, there are junk non-interactive characters dropped into areas which would look right at home on the N64. That said, the game doesn't always look totally terrible, it just doesn't look all that good.
-Asset re-use is a huge, huge problem. Walls are often just the same picture tiled over and over and over in a very, very obvious way, and there are only around 20 maps in the game which are each repeated 10-15 times. You'll see the same maps so many times over the course of a playthrough that you'll start to wonder whether you're in Kirkwall or the Twilight Zone.
Over all, decent game. I'll probably just force someone to play it because I just don't want to go through it...again. But anyway, probably Superman 64. Poor controls, terrible plot, horrible visuals, bad music, abysmal gameplay, shitty boss fights, horrendous ai, and laughable animations.