To save you some time, all people here will say Taiyo Yuden. There is no need to ask this again.
For me, any media that works will do. The thing is that i don't really see going from working burn to superb burn will give me any advantage. Getting a disc with PI/PO=100/10 or PI/PO=10/1 are the same for me. As long as, they both work, they will do the job for me. I just cannot see myself paying extra just for those good looking kprobe's graphs. Getting crappy discs and unreliable is not acceptable though.