From our old , current or ex United players by United fans on here I say.
Van der Sar (not hold up as high for our defensive record as our other defenders and keepers)
Evans ( Did a great job to win many titles yet people wanted him gone)
Valencia (Looked down upon since he was no Ronaldo, but forgetting the great job he always did)
Jones (everyone calling him thrash after the injuries, but forgot the player he used to be and what he has done for us)
AWB (Playing regulary and doing a great job, but people want to replace him)
Lingard (talked down all the good he done for us after some poor years)
Lukaku (talked as a donkey even though we ended in second and reached Fa cup final during his first year and he scored a fair amount of goals)
Young (changed his role, but always have done a great job defensivly and got a nice cross in him. No Ronaldo though in terms of scoring goals so gets looked down upon just like Valencia)
Fellaini (Hated since Moyes brought him, but did a great job as a squad player and impact sub)
Lindelöf (always talked about as the problem even though he has mostly played well and is a very modern and useful defender.
Overrated players I say
Zlatan (for what he did for us he is overrated I think. We ended too low in the league and his Europe league impact is overrated since he got injured and missed the key rounds)
Vidic (compared to Rio and out other defenders he has been hyped too much)
De Gea (not anymore, but people used to call him best in the world)
Tuanzebe (hyped up to be first choice when not proven)
Bailly ( a bit harsh, but people want to start him over Lindelöf based on mainly hype from being injured)
Cavani (fantastic player like Zlatan, but have actually not done much for us)
Greenwood (Lots of hype, but his impact is not that great overall yet. People hype him up to be another world beater, but he has not proven to be one yet)