Ridley, Colnago, Bianchi or Wilier? wot you lot think?

Finally in about 2 more months I'll be able to upgrade my current bike for a carbon frame one, being doing some research and narrowed it down to the brands I mention on the subject above, my buget will be no more than $3,400, I know it really comes down to which bike fits & feels better but ultimately I would like to hear from any of ya that has or already have own some of this specific bikes and could give me some good feedback pro & cons on each one..Thanks in advance & wait for replies.