The most important thing to know about them is how much worse the second one is compared to the other 2. The first game had charm, tact, great level design, varied action, an interesting character with quality voice acting, et cetera. Besides the really crappy final boss, it was close to perfect.
The second game trashed all those elements and replaced them with tits, ass, witless profanity, generic "badass" voice acting, stale hack-and-slash action, lame level design, severe glitches, tits, ass, nü-metal, and other things that reek of a game made for fratboys and other such doofballs. The part in the intro section of the game where they actually put a break in the action so they could cut in close and show the Prince saying "You bitch!" almost made me quit playing the game on the spot. But I pressed on... only to quit later, when I started to get really sick of fight scenes that were stupider than Gauntlet and chase scenes where the music and effects would inexplicably cut out after 3 seconds. I sold that garbage before finishing it and trashed the file off my memory card.
A few months later, after that bad taste was finally washed out of my system, I bought the third game based on positive press and was overjoyed to find that every good element of the first game had returned. And my thought was basically "apology accepted, Ubisoft."
