There’s 4 though, where does Demis fit in the stack rank?

TBH, I hadn't heard of him until now. Looks like he's had a crazy legit professional career. I'd put him at the top for his work at Bullfrog alone.

Demis is the reason Google is afloat with a good shot at winning the whole race. The issue currently is he isn’t willing to become the alphabet CEO. IMHO he’ll need to for the final legs.