All 3 United
His tinfoil hat protects him from the Glazers.
You seem to have the idea that all central defenders reach their peak by age 23. I don't agree, and Vidic is proof, but I'm open to discussion.
No I think a defender is generally at his best age 28ish but with Jones and Smalling you can already see are going to superb defenders. Evans for me is lacking in strength, especially in the air and currently concentration (this may get better with age).