When the season started with the dude ranch episode and especially the first couple episodes with the new Lily, I was a little worried about MF going downhill too. But I think around the time that they introduced David Cross's character and the whole angle of Claire running for city council, the season started to become really good. I think the scenes in the "Little Bo Bleep" episode with the kids helping Claire prepare for her debate were some of the funniest moments of the season. There were a string of really good episodes in the second half of the season ("Virgin Territory", "The Last Walt", "Tableau Vivant"), and the season finished up really strong as you said with the Cam/Mitchell wanting to have a baby subplot. I think the only cast member who has gotten a little annoying is the kid who plays Manny, his character has become a little tiresome but that's a minor complaint. I think Sarah Hyland and especially Ariel Winter got a lot of chances to shine this season, it's too bad they weren't nominated too.