I have a note 2, my son an HTC One
the HTC is a better media player, sound is better even in headphones or jacked into car audio, better audio driver hardware - wider frequency response, sounds better
HTC camera functions more fun and generally better
HTC great "build quality" - solid hardware, beautiful screen (makes iphone using friends sad/jealous)
speakers on the front ! no more cupping hand behind phone to redirect sound
seems a shame to hide it in a protective case...
does anyone really like "blinkfeed"?
Note 2 - bigger screen - no more fat-finger..., more info on screen, better for "work"
dual apps on screen nice
numeric keys on keyboard
replacable battery (I use an extended battery sometimes, need it...)
micro-sd - you can never have to much storage space...
S-pen is nice when needed, but I really don't use it very often
If I look really closely I can see the "pixelation" of the "only" 720p screen - but not in normal use (I got the big screen so I do not have to look so close...)
had to turn off a lot more annoying auto-functions than on the HTC
(my old HTC Inspire also had better audio than the note 2)