I really enjoy them all, but if I had to rank them, it'd be
I've listened to JA around 80 times so far (according to iTunes), so I'm far more familiar with that one than I am with the others. I also haven't had a chance to see Tomorrowland or Inside Out yet, as I was traveling abroad when they first came out, so I don't know those scores as well as I do JA or JW. I could see the order changing in time as I listen to the newer scores more and as I see the films.
I'm excited for the Agents of S.H.I.E.L.D. soundtrack. I haven't listened to anything by Bear in a while. This could change that.
I think it would be neat if he scored Inhumans, since Agents of S.H.I.E.L.D. is introducing the Inhumans to the MCU. However, I hope that he would have had a chance to score a big live-action film before 2019.