Seeing as I live in the UK and have only been to one Skins game, it has to be that one! Was in DC in '94 when we played the Cards and lost , 19-16 (OT), after Shuler stunk up the joint.
However, it was great for me as I got to see my favourite Skin of all time, DG, run back an INT for a TD. Just wish I'd seen a win!
One more thing I remember - how great the Skins fans were around me. Bet my accent threw a few, but I felt right at home. Everyone was so chatty etc. and I went away feeling great, except for the result. Nothing like a (soccer) game over here.
EDIT:
Found my old photo album from that trip...