Here's my list:

1. Sean Connery (quintessential Bond: suave, cool, sardonic, good at the action bits, and Scottish - Bond was supposed to have some Scottish blood in him from, I think, his grandmother);
2. Pierce Brosnan (almost as good as Sean Connery, except he's not Scottish laugh );
3. Timothy Dalton (I liked his angst-filled rendition of Bond).

Yvonne