For Pokemon Stadium, I had used the following teams for each of the cups with the help of the Pokemon Red Advanced Battling FAQ
Starmie
Tauros
Zapdos
Alakazam
Golem
Exeggutor
Abra
Omanyte
Growlithe
Sandshrew
Magnemite
Dratini
Starmie
Arcanine
Lapras
Alakazam
Dugtrio
Chansey
It was hard to lose...