Dirt 3 or Forza Motorsport 4 or F1 2011-please read details?

Are all three of these racing games worth getting?

Which one should I get at weekend and which one(s) should I wait until christmas to get?Dirt 3 or Forza Motorsport 4 or F1 2011-please read details?
It all depends on what type of racing you like, If you rally then get dirt 3 if you like track racing then get f1 2011 however if you like something to look at while you are driving with awsome graphics then i suggest forza 4.Dirt 3 or Forza Motorsport 4 or F1 2011-please read details?
Dirt 3

http://goo.gl/wu86x



Dirt 3 is a popular rally racing game for PlayStation 3 that combines the feel of fast-paced arcade style racing action across multiple surfaces and environments with realistic features found on real off-road circuits. The third release in the acclaimed off-road racing franchise, Dirt 3 features a range of racing and driving disciplines at spectacular locations, more than 100 routes, the finest selection of licensed action-sports racing cars, multistage rallies set at classic locations, exhilarating snow racing action and mesmerizing Gymkhana race events.Dirt 3 or Forza Motorsport 4 or F1 2011-please read details?
Forza 4, try the demo it is amazing.