Hands down Season 2. Season 1 definitely had some great episodes but in some spots it feel like one great big torrid mess, I'm glad they didn't decide to stick with Megan she felt like such an odd fit. Would have liked to see more of the one character Adele though. Season 2 what did it for me was the edge of your seat episodes that completely grab you and take you by surprise; the shark episode with the woman in the harbor yikes. That or the xover between Miami and NYC. Seen that episode about three times now and the opening bit with the poor girl's mother still gets me, holy shit.