I've had Mezmerize a few days, and after listening to it a few times I'm definitely liking it. Song by song, ehre's what I think of it:
BYOB 8/10
Just the guitar intro is amazing enough to give this song a high rating, but it's the way the two completely contradictory moods in the song mesh that make this a great song for me. The one thing I don't like about the song is Serj's "La la la la la la la." And yet, there's soemthing else missing that keeps it from being one of System's greatest. By any means though, a great song.
Revenga 8/10
I really like this song. The fast paced vocals and John's abckground percussion make it a unique song among this album.
Cigaro 7/10
Heh. I just know this one is gonna get controversy. I won't go into depth, but the lyrics are pretty profane (look 'em up on azlyrics.com if you must), and somehow the song just feels odd, but musically it's a decent song. I especially like the "Cool, in denial" part. A good song, but not on of the Album's greatest by any means.
Radio/Video 8.5/10
This song is catchy as all hell. I love it, but again it's just missing the undescribable quality that makes the greatest SOAD songs great.
This Cocaine Makes Me Feel Like I'm On This Song 7/10
Well, it's fast-paced, but otherwise nothing really stands out for me.
Violent Pornography 8/10
Like R/V, it's very catchy, but the lyrics are so weird that I really can't take it seriously.
Question! 9.5/10
Here we go! This is already among my favorite SOAD songs. I love the guitar, and this is some of Serj's best singing yet. I really can't say much bad about this song.
Sad Statue 8.5/10
My favorite part of this song is how the chrous happens so suddenly. The lyrics in the chorus are also very catchy.
Old School Hollywood 7.5/10

If Mezmerize were a classroom, OSH would be the eccentric class clown. It obviously doesn't want to be taken seriously, but deep down, it's kinda cool. The robot voice combiens with the cheesy synth stuff to form a pretty enjoyable song.
Lost in Hollywood 10/10
At first, I didn't see much of anythign special out of this song. But after a few times listening to it, an indescribable amazement dawned on me. There's just something in this song that no other song I've heard in months has had. I love this song. It's already one of my favorite songs of all time. It's a very slow song, and Serj and especially Daron do a great job of creating an atmosphere of loss and despair. There aren't more than a few lines and the song is very simple, yet it seems epic and amazing. Destined to go down with Ego Brain, Chop Suey, and A.D.D. as one of SOAD's best songs of all time in my book, Lost in Hollywood is the closest thing to perfect I've heard in a long time.
Overall: 8.5/10
Mezmerize doesn't quite measure up to Steal This Album!, in my opinion, but it really has mastrepieces, and when it's only half of the final product, how can you complain? For anyone who doesn't suck, Mezmerize should be on your must buy list. I can't recommend it enough.