I can't stand the Bleach anime, way too much filler and the filler is also horrible, so I just read the manga for Bleach and quite frankly it hasn't been as good post-Aizen arc.
Death Note's awesome as are the Scott Pilgrim comics. I haven't seen the other stuff so yeah, no comment. :P
I would highly recommend you watch Steins;Gate so far it is easily the best show this year.
As for myself, I watched Usagi Drop and thought it was very good, then I read the manga and it completely ruined it for me, so yeah I advise not reading the Usagi Drop manga. As for this current season I'm watching...
Persona 4: The Animation - So far it has stayed very true to the story from the video game, which is a good thing. Not much to say really if you like the video game you'll like this. If you're not familiar with the game, well then I guess you could describe it as a murder mystery featuring school kids with the ability to summon demons to help them fight other demons... yeah.
Last Exile: Ginyoku no Fam - The sequel to the original Last Exile, so far things seem to be playing out in a similar fashion to the original too early to say either way on this one, but I would highly recommend the original LE,
Guilty Crown - One of the more highly regarded shows this season, I'm really liking it so far. It is like a mix of Code Geass, Macross and GitS, plus the female lead has pink hair, so that is a plus.
Tamayura -hitotose- - Very meh, nothing exciting, average slice of life stuff, but it airs while I'm waiting for the other shows, so I'll prolly keep watching.
"Women are like sunsets… they’re beautiful, but there will be a different one tomorrow." - Gilder