@ Partho, I didn't get the Note 2, my wife did. So far she loves it though outside of trying to use it when the sun hits the screen.
I've been talking to a lot of folks over on the Verge in the Android Army getting suggestions about phones, updates, etc. I will be locked to AT&T since my wife upgraded to a Note 2 last weekend. So far she loves it and her only complaint is she struggles to see the phone outside. Since she has small hands it's difficult for her to shield the screen and get anything done simultaneously especially when trying to use the S-pen. Also, I have read so many negative things about AMOLED that while I love the looks of the S3/4 I fear Pentile and outdoor use will make me hate it in the long run.
Since I haven't upgraded in so long (still using a launch day 3GS) I want my phone to be as future proof as possible. I know 1080p is becoming the standard this year so that is a must, along with at least a quad-core 1.5Ghz+ processor and 2GB ram. A removable battery and microSD card slot would be a bonus and I prefer LCD/IPS hands down to AMOLED. Camera-wise I take a TON of pictures but I guess coming from my 4 year old iPhone anything would look great. However I have been most impressed by what I've read on the One's new camera.