Isley Brothers literally had hits in the 1950s, 1960s, 1970s, 1980s, 1990s, and 2000s. EWF may have bigger songs but in a battle that is going to span 20 tracks, the Isley Brothers can go toe to toe with them. EWF's hits only span the 70s and 80s. Granted they had a shyt ton in that period, but still worth noting.
Also nobody really talks about how Maurice White won't be there, since he passed a few years ago. Could throw the entire vibe of the EWF performances off. I'll have to look up some recent live performances and see what it's like without him.