I hope they keep Megan as the main LI, although, with how the intro went I don't think that will be the case. Or maybe, just maybe, we finally get to choose and get multiple routes!
Same, I think her story is the best and most emotional of all, even if she's a bit self obsessed at times.
Jess ... no question about her hotness factor, but there's nothing really personal going on.
Amy and Ellie are good fillers, but a bit too generic. Ellies 'geek' factor is hardly believable, and not just since she accepted a costume that was bought in a store. True LARPers build their costumes themselves.
Don't really care about the rest (including Elizabeth), the one who could vanish instantly from the game without me noticing is Angel.