A 'best XI' is an irrelevant concept these days. Even if all of us managed to agree unequivocally on what the best XI was, there's no way we'd be able to play it in any more than ~60% of matches, simply because of injuries, suspensions and the need for squad rotation. I think it's more meaningful to simply think in terms of 3 categories of players:
- Those you'd like to start whenever possible, e.g. Kane, Lloris, Eriksen, Rose
- Those who you'd be happy to see starting when needed, e.g. Davies, Alli, Walker, Vorm
- Those who you wouldn't want starting unless there's no other option, e.g. Townsend, Fazio