I'm surprised you have more faith in Manchester United than Tottenham Hotspur, is that due to their recent improved form?
For Newcastle United, they might did well by beating gunners in EPL but that doesn't mean anything for a fluctuating team.
I also have no doubt about Liverpool and Arsenal, they can definitely reach the semifinals easily, especially since their opponents are not worthy opponents in my opinion. A result with a gap of 2 to 3 goals is still reasonable.
For Manchester United, they look promising, a draw against Chelsea was not enough, but at least they were not embarrassed at home. When they play Tottenham Hotspur, Ruben Amorim is the manager there, I think we can consider them to win against Tottenham Hostpur.