It's like comparing apples to oranges. AFAIK, Pete is just using the releases from Motorola and piecing in a couple pieces here and there so it really isn't anything special. Pretty much the same as the others. Sapphire is a "from source" rom built on the source directly from google with only the proprietary files from the Motorola releases. The free version of Quadrant looks pretty but is pretty useless when it comes to determining rom performance as you don't know what a rom is doing right or what it's doing wrong. CVPCS and the Sapphire crew removed the Stagefright media player in favor of another due to issues with audio streaming quality. I've used Bugless Beast and from what I can tell, 1.0 is faster, smoother and more bugless.