I loved the 4-2 swindon victory in the late eighties. Latter stages on the league cup, I think, but when it still meant something. We were 2-0 down at half time before the introduction by the Bruise Brothers, Ruddock and Shearer. Nichol's subs were inspired. We laid siege in the 2nd half and must have had at least 20 good attempts at goal, with Swindon barely being able to clear their penalty area, but didn't get level till near the end. Finished them off in extra time. Fantastic.
I remember the 90's 4-0 victory against Boro well as I had it as a correct score bet. I remember thinking that it could be my lucky day when Super Ken made a chest-high "welcome to the Premiership" challenge on little Juniniho in the opening 30 seconds.
But the best match at the Dell has got to be the last (real) one. I particularly remember heaving a sigh of relief when we almost made it four right at the end with an effort which just wouldn't have quite signed off 100+ years the right note. Perfect.