Road bike recommendations

I can't be arsed to read the whole thread, can someone just summarise what are the best value carbon-framed road bikes with Ultegra or similar...is it the Planet x Pro Carbon with Sram Red...or is there better....thanks.
Not very many options under £1.5k if Ultegra level is mandatory.

Ribble's bikebuilder can give you a carbon frame with ultegra for around £14-500 and all the parts are tweakable which is nice. Can't vouch for them personally but a friend of mine likes his.