I picked up Burnout Paradise over the weekend. It's a title I've been planning to get for some time, but since I finished the Valkyria Chronicles story mode, I have more space for another game. I haven't had a ton of time with it, but already the quality of this game shows.
First of all, I love the open world and unlocked feel of the game. Too many open-world games fall into the same trap: it's not really that open. To get to other areas, you have to unlock this or that, proceed through levels or something. That might make sense in some areas, but in a racer, you have a car. Just drive anywhere. Burnout Paradise really busts all those barriers down and just turns you loose in the city.
Which can certainly be daunting. The city is big. Really big. Big enough to get lost in. Thankfully there's almost always an event at the next intersection, rewarding your aimless wanderings. It's fun to just cruise around and find an event here and there, finish that, and pick up from the finish line again.
The cool unlockables are in the form of cars and bikes. It's always fun to collect hot rides, and you don't just buy them -- you win them. You have to take down that car cruising around before you can run it yourself.
The racing is fun, the game looks great, and the open world nature of the game rewards you for crusing around and plain just playing the game. Definately a lot of fun.