Whats the most epic mountain stage in Giro history, considering factors such as elevation gain, gradient, and the impact of weather conditions on the outcome? Was it the 1988 Giro, stage 14 from Chiesa in Valmalenco to Bormio, featuring the infamous Gavia and Stelvio climbs, or perhaps the 2019 Giro, stage 16 from Lovere to Ponte di Legno, with its grueling ascent of the Mortirolo? Or could it be the 1994 Giro, stage 15 from Merano to Aprica, characterized by the treacherous descent of the Mortirolo and the subsequent climb to the finish? How do these stages compare in terms of their overall difficulty, and which one would be considered the most epic by modern standards? What role did team tactics and rider strategy play in shaping the outcome of these stages, and how have advances in bike technology and training methods affected the way riders approach these challenging mountain stages?