Honto yajuu and punch up would be on my top 10 list, probably top 5. 10 dance is another favorite even though it's unfinished.
koori no mamono no monogatari is probably my all time favorite, but it's not yaoi. it's shounen ai. my top 3 yaoi must be kobi no kyoujin, the kuroneko series, and junketsu drop. (although this would probably change tomorrow). (〜￣△￣)〜
Oh boy. There's so many that I love. 10 Dance is one that I love but don't hear mentioned very often.
Yami no Kudou. The plot are complicated, but i love it!
Katekyo, Honto Yajuu, all of Scarlet Beriko sensei's mangas especially Yondaime Ooyamato Tatsuyuki, Ze, Kuroneko Series, and so much more. These are the ones that I often find myself rereading every single month lol.
What is the best yaoi manga you've ever read? （￣へ￣）