Moyes said: "It's difficult to beat Manchester City at any time, especially when they know they've got to win a game to secure the championship. That puts us under pressure because of what Manchester City can do, but it also puts them under a bit of pressure.
"We're fully focused on ourselves. We're not playing to make Manchester City lose the Premier League or for Arsenal to win the league, we're playing for West Ham and we're trying to win the game for our supporters.
"We can't finish the season lower than ninth, which is a really good position for us in lots of ways. I think we're all pleased with that situation.
"Pep Guardiola ranks right up there with the best in the Premier League, if not as the best. He's done incredibly over here and transformed football in many ways. He's been brilliant at what he's done, and he's still doing it.
"There's a lot of talk about the disappointment of Jrgen Klopp leaving the division, and I think the quicker Pep leaves, the better for a lot of the rest of us managers! Everyone respects the work he's done, because he's been excellent."