Grand Theft Auto 4 I thought was actually a terrible game. I remember people praising it, it was getting all the accolades, it sold gangbusters, but I hate it so much. The story isn't good, I don't like Nico, I hate his cousin, I hate the vehicle physics, I hate how there isn't much for you to really buy or customize, I don't know what everyone was on with this one. It played well and looked good at the time, but that was it. At the same time, Saints Row 2 came out, which was AWESOME. It was funny, ridiculous, there was lots of side things to do, good customization, it was everything GTA4 wasn't to me.
It's kinda rare for me to hate a game, dislike something sure, but that one really got to me just on sheer disappointment.
Another I could maybe add is Super Mario Galaxy. That's a weird one in that I think a lot of it had to do with the Wii itself at the time. I bought the system at launch, but as whats kinda become common for Nintendo it seems, they didn't have a lot of great games for launch. So I was abit soured by that and how I wasn't liking motion controls. Super Mario Galaxy had kind of that baggage added onto it and what I felt was taking a wrong direction in the series. At that time, I didn't want to see them abandoning the hub world, which they were starting to with the first one, and I didn't like the space setup.
Maybe it was more disappointment due to potential for a Mario game, in that I wanted to what was Super Mario 64 and even Sunshine, but expanded. You got better tech, lets see some crazy awesome worlds, but the little planetoids you around with waggle mechanics just wasn't doing anything for me. Super Mario Galaxy 2 then just went for more standard Mario stuff like the line connected overworlds of Super Mario 3 and I've stated before how I don't think that should be a 3D Mario thing.
I do actually need to go back someday to play those again and see if I still have those feelings, but that was how I was at the time.