[Kitten]

I'll vote on the faves from fave anime as well.

Seishiro x Subaru (X and TB)
Fuma x Kamui (X)
Nataku (Kazuki) x Fuma (X)
Hikaru x Kaoru (OHSHC)
Hunni x Mori (OHSHC)
Tamaki x Kyoya (OHSHC)
Schuldig x Crawford (WK)
Nagi x Omi (WK)
Schuldig x Farfarello (WK)
Ayase x Kanou (OGN)
Kuba x Kuba (OGN)
Fay x Kurogane (TRC)

Prince of Tennis gets its own list.

Kamio x Wakato
Yagyuu x Yuuta
Fuji x Tezuka
Atobe x Yuuta
Akutagawa x Kirihara
Akutsu x Taichi
Sanada x Yukimura
Kamio x Jackal
Inui x Kaidoh

There! Plenty more but... It'd get tedious.