I think I'd put City in the middle of the posession for possession sake teams:
Most entertaining: Pep Barcelona, largely cause Xavi/Iniesta and Messi will never not be great to watch. But I always thought that team severely abused tactical foul and injury feigning. They seemed setup to absolutely blitz the opposition until the 65th minute, then all of a sudden the whole team would get injured anytime someone looked at them, tactically foul anytime someone countered and basically ensure no football was played for the last 20-25 minutes of matches. It worked of course.
Middle of the road: Pep's City. They still love to go backwards because why wouldn't going from the touchline back to teh GK because an obvious cross wasn't on not be fun for everyone. They'll have halves with 70% posession and 0 shots on target, and Pep will consider it a job well done. I've written on here before: I actually think Pep is an extremely cowardly manager whose obsession with control isn't about scoring, it's about limiting the opposition's chances. But, City can never do it all match, every match so always concede quite a lot of goals because they're unable to handle counters if out of shape.
The dullest 'good' team in history: Spain when winning everything. Good god. The World Cup they won was less entertaining than work for me. Literally, people stopped watching and went back to their desks. They had 10 minute spells where scoring seemed like antithesis of their approach to football. If I had to play against that I'd let them score just for something to happen in the match. Pass, pass, pass, pass, pass...go nowhere.
Say what you want about Arsenal/Liverpool - at leats they both play football with the intention of getting forward and scoring goals.