Never actually played any of that series, they good?
I like it. It's a strategy rpg series where you pit your characters, who also act as individual commanders, against a variety of different troops -- land, sea and air. Of course, each commander and soldier has their strong and weak points, so it's up to you to find their weaknesses and exploit them in battle. You can also promote your commanders to a certain variety of classes, such as a marine commander who uses water-type troops. Unfortuantely, most of the series is written in Japanese, and hasn't been released overseas, so you might have to do a bit of online and Japanese studying in order to get into the games easier than you would without such help. You're screwed, otherwise.