Dungeon Siege 1: Perfect gameplay, but it had too much gameplay to story ratio (aka not enough story)
Dungeon Siege 2: Perfect everything... couldn't ask for better. I played it in French and then in English it was that good.
Dungeon Siege 3: A complete disappointment in every way possible. An insult to the DS series... I threw the game in the garbage in was that bad.
Dungeon Siege 4: Needs to go back to the DS 1 and 2 style and just update the graphics. It's the only way I'll buy it now that I've seen how bad DS3 was.