I've used the OG Droid, Bionic, Photon, Note 2 and now the Note 3. N3 has the best camera that I've personally used, in a phone.
I'm an amateur photographer and use a Canon 6D along with the Canon EOS Remote app. It's a PITA to get your phone and camera sync'ed (at least for me it was) but I love it. Especially when I'm going to be in the picture and taking it as well. You get a real time view and can release the shutter from your phone, then view the shot immediately on your phone.
Can't sleep.....Clowns will eat me.