Right. Who could forget Brooksie's dives... Sheesh. But I still take Schmidt, since 3d isn't the most critical defensive position.
By the way, I like to throw Graig Nettles into any discussion of third basemen.
I'd place Nettles between Robinson and Schmidt as far as glove play is concerned (his performance in the '78 WS was legendary), but obviously at the bottom of that (short) list in overall play.