Dirt 3 vs Dirt Showdown

Never ever think about Showdown. It's crap. Choose Dirt 3.

DiRT 2.

I think Showdown is really fun in multiplayer with a bunch of friends, but for longevity, 3 is a lot better.

Depends on which type of game your are looking for. Showdown is completely different from Dirt 3. If you are looking for a rally/off road racer, go with Dirt 3. However if you are looking into a more "arcady", as in the type of races offered, go with showdown.
Both are solid racers that will appeal to different people. Also be ready to receive a ton of negative comment on showdown (understandably). The game took a fairly well established, semi-smulation rally racer and turned it into an arcade like racer...people were pissed...people are still pissed.

DiRT 2 is best. DiRT showdown can be entertaining with friends, but it only lets you play set events. DiRT 3 is a balance between Showdown and DiRT 2.

I liked Grid a lot more than either of those.

Does Dirt 3 still have GFWL?

dirt2 is much funny. 3 decent, showdown pretty bad

Both are so damn bad and boring.I once played DiRT 3, you just drive on a muddy stupid field and crush every 3 seconds.I'm bad at driving games, but the game was so damn boring.Grid 2 is better.

Showdown is a joke. Dirt 3 was good, Dirt 2 was better and the original Dirt (imo) was the best. Beware of DLC in Dirt 3!!

I guess I will go with Dirt 3.

Dirt 3 for Gymkhana. Showdown is just a show, if you don't really like rally you can take it. Dirt 2 is probably the best in the series :)