HAH I adore Oikawa, but only because he's me (so I love and hate him in equal turns). My main love is Nekoma, just - the whole team, yeah - and any ship combination of Kuroo, Yaku, and Lev.
The body visuals in this show ARE SO IMPORTANT!! It's suuuuuch a physical show, and I think that point is driven home a LOT if you watch the stage plays. (I have all of them... subbed... lol) There's so much that goes on with setting up the sets and it's easy to see just how a player/actor has to jump or dive or swerve!
Oooh I haven't read the manga (the art style puts me off) but I know what's currently happening!!