Think with the question the actual answer is Manchester City.
When you talk about season, that's across the duration of all of the matches played.
City led the table for 8 months, enjoyed being dominant, had a great unbeaten run.
Smacked United at home, got them to bel19ve again lool and then kept that stupid spelling the way it is, with the Aguero finish.
Before Tevez went you were playing scintillating football, in terms of the Champions League, it was a tough group w/ Bayern & Napoli in it. Fa Cup I can't even remember how you went out, but definitely across the season you were the best.
However in terms of what was achieved, you hadn't won the league in over 4 decades.
We'd never won the top European trophy, both of them were monumental wins.
If you look at the fact that Barca are so good but cannot win it twice in a row, it shows that it's not easy to win this competition at all, we've been close with no cigar...
and to be fair, we want to win it in a better way than we have done this season.
But, in terms of achievement a UCL win added to the FA cup, trumps a Premier League win.
I always say the bread & butter is the Premier League & UCL winners should always want to win their league as well, that's the measure of a team. It was easier for us to focus on the Cup, by sacrificing the league.
I rambled on, but, you get my drift.
City better season, Chelsea better achievement.