LOL another addict, welcome PhillyBride! Personally, Eclipse is my favorite book of the 4. Breaking Dawn was ok I guess but kind of weird/crazy...I was a bit let down by it but that's just me.
I started reading the House of Night series after I finished the Twilight series (to get my supernatural/vampire fix) and it is a great series, I highly recommend it. I am enjoying reading it as much as I enjoyed the Twilight books, maybe even more.
More recently, I read Hush Hush by Becca Fitzpatrick, it's basically like Twilight but angels instead of vampires. It's a good easy read, nevertheless...I really enjoyed it, can't wait for the sequel next October!