I'm not sure if this is an important match or not what is clear is don't be too confident on one side. Indeed, Manchester City deserves to be the favorite to win because they have a better history and statistics it's just that sometimes the unexpected can happen for example they play young or new players well this can mess up our predictions so it's better to wait a few hours before the match starts to see the starting lineup. By the way so far the sportsbooks Stake.com prefer Manchester City and both teams to score YES and over goals are still the favorites to place bets, I don't think both teams think about playing defensively meaning the fight will go on until the last minute and let's wait for the next 4 days.
City won't play purely defensively but it could happen that they control the ball all game (without trying to take risks, playing "for sure"), then United will have big problems to score a goal. So I'm not at all confident in BTTS. I'll probably just place a simple bet on City, as it will be a normal game (and not a game where City players have not had time to sober up from drinking in honor of the title) as I expect them to justify their status as favorites.
This game of Manchester City and Manchester United will be a great game though, but I myself will also give Manchester City a when if I am to play bet because Manchester City is in better form than Manchester United this season because all identification of that has already been shown, but some risk takers might try to see if Manchester United will be able to win, and that will be very hard to happen. Although it is just a game, and we all know that Manchester City has been preparing themselves, they will be very ready to face any other teams in any game, so definitely all hope will be on Manchester City.