I loved the first soul caliber, liked the second one, and so far I really like this one. I definately think its better then 2. I know I'm in the minority, but I actually like the single player campaign, not the individual stories for each characters because thats the same for every char and gets boring, but the rpg/rts one. One thing thats crazy in this game is the number of characters and unlockables. So far I have a total of 34 characters, not including create-a-characters, and who knows how many more there are. And theres at least 18 weapons for the create-a-characters, many of which are completely new weapons and those that aren't new have different moves then the regular char.
I think, in my opinion anyway, this may be the best soul caliber yet.