Manchester United's performance is difficult to predict and they have played inconsistently this season, but if you look at the match that will take place at Manchester United's home ground, they should play better so as not to be embarrassed by Arsenal at home. Playing at home, there is no guarantee that Manchester United will be able to beat Arsenal, but I believe the match will end in a draw and even if they win, Manchester United will win the match.
Manchester United cannot be considered a weak team. This squad is strong. But the bonding between squad players is weak. Match strategy is not good enough either. This is why United's overall performance has been poor and erratic. So it cannot be said for sure whether United will be able to play well in the home match against Arsenal. Arsenal are in very good form right now. Arsenal have won their last two matches against Tottenham and Chelsea by 3-2 and 5-0 respectively. Arsenal players are expected to continue this trend.
Tottenham have also not been very consistent this season and I don't think Manchester City will have too much difficulty getting full points. If you look at Manchester City's performance this season, it is much more difficult to stop them and home or away games are not a big problem for them to get full points. Football can happen unexpectedly, but Manchester City does look very strong compared to several other clubs.
Tottenham is a strong team. I saw their performance against Arsenal. Tottenham players were able to play well enough. Arsenal team will definitely try to get points against Manchester City. But CTO is strong enough. And Guardiola is well aware that dropping points in a match will make it all the more difficult for City to win the title. If you want to win the title, you have to win consistently. City will definitely play for 3 points.