This counts. OFFICIALLY there is ONE episode of Fake. So, I get to select Dee and Ryo as my favorite on-screen anime (and on-page manga) couple. They kill me. Unlike many yaoi titles there isn't a weird femme vibe in either Dee or Ryo. They are dudes. They are in their 30s. They are cops. Dee is a god (just my opinion...and his own). Ryo is reflective, affectionate and tender without being girly, and he balances Dee's gung-ho, intensity and immaturity.
And, as is evident above in a still from the anime, they're smoking hot.
Dee's all, "RYO! I will pounce on you and seduce you and you will want me because who wouldn't want me? Also you are the air I breathe and whatnot."
And Ryo's all, "Dee, no, I can't. I guard my heart."
And I'm all, "SQUEE! Now suck face like 'mwah!'"
And in the middle of their torrid will they/won't they romance drama, they manage to come to terms with their tragic pasts, forge a family out of their bonds with one another, AND be bad ass fighting, shooting and crime-solving detectives in the NYPD.
I feel that this catagory is screaming for some runners up:
1. Inuyasha X Kagome--Another pair who guards their hearts and emotions. There are things about their relationship in the anime that Americans might not pick up on, for instance her "I'm going home" refrain is pretty significant to Japanese viewers (it suggests the end of a relationship or a divorce, which suggests that there is more love between Inuyasha and Kagome than is revealed on screen). Their love is subtle and timid, but ultimately very sweet.
5. Shunsui Kyōraku X Jūshirō Ukitake ---Okay fine, there's no "official" sort of coupling of them, but it's so obvious...I mean...Come on!
There are plenty of others, but I'm saving those for other catagories.
Dee is a god.