Whatever you choose, I would suggest not doing Citadel Of Flame. While it's a nice enough module, I think pretty much everyone on site has credit for it now. We've had at least three games of it, mine included.
If you really want some roleplay, the City Of Strangers arc could be a great one as well. I prepped for those but never got to run it on my one face-to-face PFS day, and I liked the look of them. Considering it is an arc, it might be good to specifically mention that they are multiple games in a row, so you'll want to keep an active and dedicated group.
I haven't played any other season 1 scenarios though I don't believe, so I can't say from experience.