@ OP... I use Vue6 Infinite with 5 rendercows to render P8 animations.  Works great for me, giving me what I personally need in terms of speed versus quality.

BTW, I don't subscribe to these general statements about which renderer is faster.  These programs have too many setting variables to make general conclusions.  For example, just yesterday I was working with Vue6Inf, made one tweak to an atmospheric setting and changed the render time from 57 min to 12 min.  In my experience, there's no substitute for trying each candidate renderer to see how long it takes to render scenes which meet your personal aesthetic objectives.  Thank God for demo versions.

BTW#2: I just noticed that I joined this place just days before Little Dragon did, way back in 2001.  If only I could have accumulated as much knowledge since then as he has.