Oh dear, let’s see…

My otp:  Uh… I… guess Mello/Near?  But it’s more of a, “Realized this too late,” or, “Knew all along but had no time because of the events in the series.”  I think at the end, when Near gives Mello credit for helping, that’s when I really felt the otp vibe?  But by then Mello was gone.

As a bonus I also don’t mind Gevanni/Near, but that’s because I found a great series of fics once upon a time.   
My most hated pairing:  None that I can think of.  Wasn’t really in the Death Note fandom that long to develop too many pairings.
My unusual otp:  Um… I read a good Matt/Near fic once, so… maybe that?  I’m not really sure. 
My crossover otp:  Snow from FF13 and Near.  Again, don’t ask, it’s a really really long roleplay story with my partner. 
My brotp/friendship otp:  Don’t really have one.
Character headcanon:  To me Near has one of the saddest endings of all in the series.  Even if the case is solved, everyone he even remotely might have cared for is dead.  L, Mello, just… I feel like in that last episode/manga chapter when he credits Mello for helping, I remember he’s kind of sitting there, quietly talking, and I think he has this moment of, “Great, we know who the killer is, but there’s no one here with me.”  Like there’s this moment where I think he realizes that this man standing in front of him (Light) has taken away the only people he even considered calling a family.  And that is chilling, to me, and one of the reasons why I loved Death Note so much.