DiRT 3 is solid, and better than 2 in a lot of ways. Above all, it doesn't have as much rally inspiration like the first two games, but still is very enjoyable and worth a play. A plus is that it's also on GFWL so double everything..including the boosting. :l
I'll be pretty low down on the Arcade List, as I never really play any. I'll have to take a look at it. Hardest Arcade games I've finished are probably Super Meat Boy and Boom Boom Rocket, and I doubt they'll be on there.
Thanks for skills comment, it means a lot. Compliments are always helpful.
I'm not bragging, I've just become addicted to that award. It's helping me increase my motivation and determination to pursue a goal, just like TA. I just need to get really good now, which will still take ages.
EDIT: Also, I couldn't really think of what to type, as I can't really use Banned User.