So I've never played any of these games or really heard much about them although what I do hear, is all positive. So I'm just really wondering, is it worth playing through the series? (I'd probably start with the first and make my way up.) If you could also give me a brief outline as to what the series is about, that'd be great.
Another question, are the games connected with plot, characters etc. or do they all stand alone?
One last thing, what's the deal with the different subtitles? For instance, what would be the difference between the playstation 3 disgaea 3 and the upcoming ps vita version? If somebody could tell me how all these psp/vita versions of the games differentiate from the originals and which ones are superior I'd muchly appreciate.