Don't write off Arsenal. You mentioned Tottenham... But Arsenal has done better than Tottenham this season. Currently at 6th place, they're above Tottenham and Manchester United ~ both of which you mentioned.
Arsenal, Tottenham and Utd - I think these three teams really are struggling to find their ground in this EPL. I am not expecting much from them. Sheff, Leicester even Wolves are doing far better than these big teams.
I still think Leicester will fall away & finish outside the top 4 but then againI thought Arsenal or Spurs would catch them the other year when they went on to win it.
If you put a gun to my head & told me to predict the top 4 at the end of the season Id go -
1st - LFC
2nd - City
3rd - Chelsea
4th Arsenal