Okay, one more time...
Somersby and Mad Max have posted better performances subsequent to the Arkle than SE did in that race, and are (certainly in the case of the former) better horses over 2m.
Captain Cee Bee is for me a better horse, but one with more to come as opposed to the form in the book. Plus, his Arkle run can be written off as he broke a blood vessel. Not that I think he has to rely on this, but on a line through Osana, he is better than SE.
French Opera is a horse I really like; his second in the Grand Annual off 154 is top class form. Loves Cheltenham.
Tataniano - his Aintree win was comfortably the best 2m Novice run of last season. He can be forgiven his opening run this season and hasn't run since. He would be able to beat SE without factoring in any of the likely improvement still to come.
Golden Silver - obviously a better horse than SE on form, but I accept the point about his Cheltenham record. However, I think there is a touch of the Long Run can't win at Cheltenham thing about him as well - clearly a different horse this season, and could run well. I wouldn't personally back him to place.