Responses
It's a hard pick, but Lamento BTV and Dramatical Murder are probably my favorites :)
Togainu no chi is probably 2nd
beta
For me my favorite would be Dramatical Murderer. It was the first yaoi game I've ever played and it's very interesting on how the stories flow in each route even though I always end up in a bad route. Especially Noiz and Aoba's route would still be my favorite...<3 <3 <3