Martinez can be good, but didn't he let in 4 goals in the previous round against Tottenham? Overall I think a draw is likely here as this winning streak for Liverpool is way above the expected level.
Aston Villa game will be a difficult one against Liverpool especially after having a back to back defeat, one against Tottenham and another against
Brugge in the Champions league during the week. I expect them to lose to be honest since they are going to play inform Liverpool team at Anfield. I think their best may be a draw.
In the Chelsea - Arsenal game I also expect a draw because I am completely disappointed in Arsenal, and Chelsea is on the rise now. Maybe Chelsea will even win.
Arsenal will be facing Chelsea at stamford bridge, but I think this doesn't matter much since Chelsea has face difficulty playing against top teams like Liverpool and Manchester City. They need to maximize their chances and hope to defend well, also Arsenal will be better since Odegaard while the availability of Cole Palmer for Chelsea is still a doubt but I hope we can still get a win against gunners after a long time.