Equestrian, team Dressage...to my displeasure, it must be Germany...too succesfull as a school.
Equestrian, team Eventing...not really an expert, but the Australian team dominating the Nineties until the home triumph in Sydney is my pick.
Equestrian, team Jumping...the current team Sweden is amazing, I think that none of the champions of the past (again, for the little I know about this discipline) have the same charm other than strenght.
therefore they are my pick.
Fencing, men's team Epee...despite the 1996 & 2000 double is always in my heart & mind (especially that miracle by Alfredo Rota in Sydney 2000 in the semifinal match vs ), the French team in the last 20 years is so dominant that must be the only possible pick.
Athletics, men's 4*100m Relay...I'm too biased, but the emotion was so strong that I almost had a stroke and therefore I just have to pick the (maybe) most unexpected gold medal in the history of the Italian sport, so Italy is my pick.