I'm thinking Djoko easy. Hes beaten hewitt before at the Aus open 3-0, this was 4 years ago when Djoko wasn't world no. one and had horrendous mental control & hewitt was 4 years younger.
Only danger is that hewitt will be giving it his all tonight since it might be his last game at the Aus open....but I've followed hewitt since I was young and he always brings that die-hard attitude.
Djoko -9.5 for me GL