Gonna be honest, I only vaguely recognise the name Patrick Swayze without knowing exactly what he's famous for. An actor, I think? And I have zero idea who Paul Walker is. Anomalocarus I gather from context is an extinct animal of some sort, which is cool, but I lack the knowledge to know precisely why this specific species is highly valuable.
So Robin Williams gets my vote almost by default, even if I didn't have more reason to choose him beyond that.
I admire your dedication to contribute something to the conversation while only knowing less than half the knowledge necessary one would guess necessary to have an opinion worthy of sharing.