I'd also take Kean back on loan over Saurez. Kean might not score as many goals as Suarez, but he's a more versatile forward (can also play on the wing) and I don't think he will complain when he gets benched. He's also much younger and can still improve. I was never a fan of Kean but I'd still take him over Suarez. I would take Morata over Suarez too. His speed makes him a dangerous asset in the UCL.
But more importantly, this mentality about how "there's no one better so we should take him" is idiotic. This kind of mentality is the same reason why we signed players like Khedira, Matuidi, Ramsey and other old freebies. There are no shortcuts to building a UCL team. You need to be patient, smart, and target young players. Suarez is yet another attempt from our board to be clever and it will undoubtedly backfire.