After the early retreat of Desert Crown (GB) (Nathaniel {Ire}) and mixed signals from the Classic generation in general this summer, Sunday's G1 Qatar Prix de l'Arc de Triomphe will provide more answers if not perhaps the categoric truth about how the generations compare on Sunday. In a fascinating renewal replete with conundrums, the best of the remaining 3-year-olds in action Luxembourg (Ire) (Camelot {GB}), Onesto (Ire) (Frankel {GB}), Vadeni (Fr) (Churchill {Ire}) and Westover (GB) (Frankel {GB}) pit their wits against the matured might of Titleholder (Jpn) (Duramente...