Well, if you are looking strictly to staying with a revelations campaign, And given how quiet things are going right now, I'd probably start with season 1, then season 2, and then finish with Legion cycle.
Season 1, I believe the consensus was to start with adventure 2 before going to 1, then 3 and onward. I haven't read over the season 2 rounds. Clint would be the best advisor, but I can't remember the last time I saw him post here. Maybe send him a private message? Or contact him over Facebook on the Revelations group.
You will need to tweak Legion Cycle's intro a bit as it expects novice characters with regards to the court of whispers, but that shouldn't be hard. And that adventure will buy you plenty of time to play through for PCI (or AAE) to figure out what they are doing with the living campaign.
That what I'd do anyway. Or go off the grid and cook up your own grand adventure!
Tom