For me it had to be Walker / Hunt because that was how I started watching F1 and in the modern PC world you will never again see a commentator as sardonic, balshy and in some cases downright rude as James Hunt. He made each commentary a memorable one.
Another notable commentating team for me had to be John Watson and Ben Edwards in their Eurosport days.
I agree with FB that the Brundle / DC team is working far better than I imagined it would. I think part of that is down to the fact that Brundle is prepared to ask the questions that we all really know he knows the answer to but he still allows DC to give the drivers perspective while he acts as the "Fan in the Comm Box" part. I don't think it would work as well if the both of them spouted technobable all of the time. There has to be a summeriser and an expert for a comm team to work well.
For some time in the future when he's not in the car, I would love to see Karun Chandok take up a roll on a commentary team. I like his refreshing style and honesty. He has done some friday work for the BBC and I actually preffered listening to Karun than Anthony Davidson.
James Allen made me want to jam pencils into my ears. God I hated listening to that man !!! The worst thing I hated him doing was that horrible shouty thing he did when a driver crossed the finishing line. He could never seem to time it to say the word "Wins" at the moment a driver crossed the line. Just listen to some of the play back on youtube. It always, always went something like this....
"And Lewis Hamilton....... Long pause......(ooops started to early again) further pause......... "Weeeeeeeeeennnnnnssssss!!!!"
Allen
As for Dr Jonathan Palmer, The insomniac F1 Fans supporters club commentator of the year 1994.