Dench's portral of M during Craigs two bond movies seems more ballsy and straight to the point than when she was with Brosnan's bond.
Maybe its because she has more to do and is fleshed out more. The first scene in Casino Royale has her firing up a storm
"Christ I miss the cold war!"
"Have you ever seen a bunch of self righteous arse covered pricks!"
and then in Quantum she says "I don't give a shit" I think its the first time a bond movie has said "shit".
Sure she was fiery in Brosnan's bond but not this fiery