[u]Kanto gym teams[/u] all changes from serebii.net s bios are stated. If they are not mentioned.it is the.same
Pewter city: 
Flint: Geodude,Onix
Forest and Lola: 

Erika's Tangela is Tangrowth
Sabrina's Kadabra is Alakazam (also her only pokemon)
Blaine's Magmar has evolved.