So much has changed over the years, with so many grounds replaced by new stadia, and others rebuilt (like Priestfield). Some of the old ones really weren't a great loss, and some of the new ones are just a bit sterile, although part of that is down to all seater grounds, and of course allocated seats when you get to the Premiership. I reckon that in general the best ones all round at the moment, a combination of atmosphere and facilities, tend to be the rebuilt ones.
The old Wembley really was a crumbling wreck even before the bulldozers moved in, and no great loss. I am impressed with the new version, although access hasn't really been improved a great deal.
The Baseball Ground (Derby) had a great atmosphere in the 1970's, partly because terracing meant that as an away fan you could be with your selected group and partly because it was in amongst the houses, like so many older grounds. But I reckon they got out just before health and safety condemned it, and the pitch was s***e anytime after September. Made Chelski's 'beach' look like the greens at Augusta National.
Had to laugh at Accy Stanley's ground when I went there for the first time last season, but there was terracing for the away fans, not seats. Quaint, I think, would be the best word to describe it.