Hey, the first time I ever played on Assassin's Creed was back in 2008. My mother had gotten my brothers and I an Xbox 360, and one of the packaged games was Assassin's Creed. I'd heard about it from my friend, Patrick, who said that he really liked it, but the ending was wierd; intrigued by this, I checked it out ...
Assassin's Creed I was amazing, until our Xbox broke becase my brother left it on all day while the radiotor was on full blast right next to it. Still, last Christmas, 2009, we got a PlayStation 3 for Christmas, and lo, Assassin's Creed was bundled with it! So I set out to complete it, and finally, after three hard months of trying and failing and being told it was bed timeso I couldn't save my progress, I completed it.
Then, Birthday 2010 (June), I was given Assassin's Creed II, and I loved every second of it, especially the tripped out ending like the first, but then I saw the problem. Ezio Auditore was no longer an Assassin as Altair was - Ezio wanted cold-blooded revenge, Altair wanted to serve his land and the good of humanity. Furthermore, you no longer Assassinated people, you just killed them. I will explain.
That's the definition of assasssination, and Ezio doesn't kill for political reasons, he kills to satisfy the demand to see the conspirators pay - an emotional motive, not a political motive, as I'm sure you will agree. (Definition is taken from Wiktionary)
So that's another reason, but the final reason was the way the story was presented. You went around the place killing people, but it felt like you knew what you were doing the whole time - there was no investgative manner employed by Ezio, there was no feeeling of secracy being employed by the game and most importantly, there was no real twist at the end, just a big tripped out sequence that made no real sense unless if you looked up all of the hidden meanings in the game and got somebody else to piece it together for you.
But still, I lied, I did like Assassin's Creed II and Brotherhood, just not as much. Anyways - I'm looking forward to the third game with an all out, modern day Templar vs. Assassiins war! It'll be like James Cameron's Avatar!
Safety and Peace Upon You,