I think Liverpool has everything to beat Man United. They performed well in EPL matches lately, they also will play at home in the upcoming match. They are unbeatable in the last 5 matches, meanwhile Man United always performed very unstable. Moreover, there are too many problem with Man United lately, it may bother their focus in playing. So, there is no reason that the match against Man United will end with a draw. I'm very sure that Liverpool will get full points in the upcoming match. I even doubt that Arsenal can easily win against Brighton. This team sometimes becomes the obstacle of the top teams in EPL. So, Arsenal can't underestimate Brighton although Arsenal is superior against them.
Manchester United was very good against Chelsea, and after that, they lose to Bournemouth; this has clearly shown that big matches predictions are entirely different because all the teams managers will be trying to maintain the history or brake it if they are on the losing side of the story.
At Anfield, Liverpool stand a very big chance of winning the match because they are very good at Anfield and they are in a good form this season to the extent of been a top title contender.
If you check Manchester United and Chelsea's head-to-head, you will see that Manchester United has more wins than Chelsea recently, and that was one of the reasons why Manchester United beat Chelsea at Old Trafford this season. At Anfield Liverpool has more wins than Manchester United, so I don't see Manchester United getting a point from Liverpool.