I refer you to the other thread re: Quistis, FF8. She is not only FF8's best bae way above Rinoa and Selphie, on a more practical level, she also has one of the most useful limit breaks in the game (Degenerator).
Squall/Quisty/Irvine is the only reasonable team choice in FF8. Swapping in Selphie if you absolutely must use "The End".
I *suspect* a lot of people use Squall/Rinoa/Zell and that's just incorrect
.