I can't believe people actually voted for the first series, but I suppose everyone has different tastes.
The first series just didn't work in as much ways as the next 3. Baldrick being smart, Blackadder being dumb. Does Not Work.
It was really hard to choose between 'Blackadder II' and 'Blackadder the Third' because they are both perfect and flawless, but I voted for 'The Third.
Blackadder Goes Forth is still excellent, but I didn't like the whole 'war' setting anywhere nere as much as II and III.
It is so sad looking at Atkinson today (Mr. Bean); Dear oh dear. Especially when he was so great in Blackadder