I have a roadracer and i have tried the excalibur (i was the owner of a ridley compact years ago) and you wont go wrong with any of them. I have no money to buy a ridley carbon frame thats why i dont have one
Look at the virtual length of the bike to pick the size, ridleys and BMCs run kind'a big. 56 in steel, medium to small in ridleys and Bmcs