Love the characters' one-liners as you run around.
Love the graphics.
Love any scene with Sazh.
Love the confrontation scenes (Hope/Snow, Vanille/Sazh)
Loved the boss Tiamat Eliminator (one of the few that forced me to play strategically instead of brute forcing it)
Love the name Palumpolum.
Love all the puns that can be made with the main characters' names.
Love the battle system (at least for the first 3/4 of the game)
Love the Frocobo