The anticipation for our first premier league title under Mancini will never be replicated. We'd blown our points lead, fallen behind to the rags and it looked all over. I remember the West Brom game that felt like a nothing game only to hear that united had lost at Wigan... then it was game on again. All the matches became cup finals after that, culminating in the Aguero goal.
Pep's team play a brand of football never seen in the Premier league before. They've broken a ridiculous amounts of records and are incredible to watch. He's probably the best manager of his generation, who has brought us unimaginable success.
In terms of era's there's no comparison. Pep all day long, but Mancini bridged the gap to take City from a team not even in the champs league to title winners. The first premier league title will arguably mean the most and to have won it in that manner is special.