I remember as a little boy being completely spellbound by 'One Misty Moisty Morning' - to me it was the acme of the mysterious rainy magical England I was exiled from in the merciless hot dry glare of Australia. When I grew up Span (along with 'The Spinners English Album', which I understand is considered terribly infra dig!) completed my passionate conversion to English folk. But to answer the question, I too love their early stuff the best - their version of 'Boys of Bedlam' is the best I have come across and 'The Female Drummer' sums up for me essence of folk-rock.