VIDEO: JUST BLAZE x THE ALCHEMIST LIVE AT SOUNDCLASH 2011 IN FRANCE

I remember last year around this time when Just Blaze and Alan The Chemist was in France for the Soundclash in 2010.  They went back and forth with some of their hardest productions, Ye and Swizzy style.
Question: If you were an underground artist, who would you rather have producing your shit; Alchemist or Just Blaze?