Okay, I own the PS2 Disgaea, the PSP Disgaea, and am planning on buying the upcoming DS Disgaea. These are all the same game, more or less.
My PS2 Disgaea file is the biggest/best, but I have far from done everything to do in the game. My characters are pretty huge, but no where near huge enough to start taking down the level 3000+ enemies that are hidden in the game (of course I've beaten the main game long ago).
Disgaea is one of my favorite games of all time, and I find myself in the mood to play it fairly often. With my other favorite games (Earthbound, Final Fantasy VI, Battletoads, Toejam & Earl, etc.), when I'm in the mood to play them, I start a game from scratch and beat it. But with Disgaea, since after all of this time there's still stuff to do, does it make more sense to start a new game from scratch or to pick up my old file and get bigger and maybe eventually do everything there is to do?
An option, of course, is to play the main campaign with my big file, as I get both the pleasure of playing the main game all the way through and making my good save file's party a lot stronger, except that the party is already so powerful, the main story will neither be difficult nor will it give my characters enough experience to be worthwhile.
I realize that the obvious answer to this question is that I should do whichever sounds better at the time, except that so far my PSP version has been pretty neglected, and my upcoming DS one will probably be similarly ignored. So, my question is, what do you guys do? How many times have you beaten the main story of Disagea across different files/systems, and how much do you favor that over making one single file full of huge characters?