Is obvious that not'for is in a very good performance this season, while manchester united in the other side is not that good. this is why the possibility for not'for to win manchester united is very high than that of manchester united, Just like as I said earlier that manchester united is unpredictable sometimes. you will be surprise that manchester united will end up gaining victory over not'for in this match without even minding if their wining possiblity is low or not, of course I have seen this happening countless time. So we can't possibly predict the outcome for now.
Almost everyone will probably favor Nottingham Forest over Manchester United and that is apart from the home game for Nottingham Forest, because what is more basic to look at now is the achievements of both teams in the Premier League this season. So the belief of many people in Nottingham Forest's victory will certainly be much greater even though there are other possibilities that can happen in their match, but on paper Nottingham Forest will definitely be more favored to win the match.