Why are people comparing Atletico and Dortmund to the likes to City or even Spurs or Everton? The situations aren't comparable at all.
Liverpool is also an appalling example.
Frankly, both sides on here are going round in circles in a silly way because as somebody has pointed out, it is Man Utd fans arguing with self interest and a City fan arguing with self interest.
My view as a Spurs fan? Without FFP, there wouldn't be a Chelsea and Man City in the league. That would mean we as Spurs would have qualified for the CL for most of the past 7 seasons and reaped the appropriate financial, player pulling, commercial etc rewards. We wouldn't have been able to keep all our players but we likely would have had a higher chance of keeping Carrick, Berbatov, Keane, Modric, Bale. Or at least kept them for longer. Eventually, with good management, clever purchases and a bit of luck, we may also have competed for the title or at least won a cup or two.
Everton would have qualified a few times, Newcastle once as well.
However, the presence of Man City and Chelsea has now made even qualifying for the CL on a regular basis or even once, let alone competing for the title, incredibly difficult. The sugar daddies are only good for those clubs, not for the rest of football as a whole.
I do agree that FFP was mostly a way of making sure the top clubs were't challenged any further, rather than any sincere altruism from UEFA about the state of football or its clubs.