99/00 Winning the title after being second favourites for relegation at the start of the season, and getting back into the top league after being away for a decade, top scorers in Britain at the early point of the season, etc
87 - Winning the cup beating the UEFA cup finalists in the final
13 - Winning the League Cup
05/06 - Winning the title
16/17 Surviving the drop against all the odds
Hopefully 17/18 will make number 4 on my list, but I saw the H*m****y game so I never count my chickens ......