It's been awhile since I played the game through so I don't remember the name of the place but I'd say my favorite training spot was the mine that was in the flying city...yeah, that one place. I'm being serious, I remember very few names in the game. But I do remember spending like two hours training there. That game was very stingy about experience but I found that place to be pretty decent. I noticed that if I focused more on getting license points instead of levels, the process went ALOT quicker, or atleast it felt that way. Distractions equal success...