Sorry scott, but I do not agree. At least, every console generation brought a general increase of resolution. Lots of games are 720p on PS360. So if we get 720p BF4...there is simple no progress and that is dissapointed. I know that some games this gen had super low resolution (ps3 the darkness?!) but were still higher than last gen. So, reality is that substantial sub 1080p, which 720p is in my opinion, would be dissapointing in the sense of the ps3 the darkness resolution and I do not expect this from one of the most technical capable devs around!
Furthermore, I clearly recognize the difference of 720 and 1080 on my screen, I promise you that you will see the difference as well. I did lots of test with my gaming PC and it is obvious. Played PC 1080 all time, until GoWA on PS3...which was super jarring in the first hour, although lots of forumites praise this game for its high IQ.
I wonder the following: if devs want to crank up the detail level of the graphics, e.g. texture and shader detail...720p will clearly limit them due to the artifacts. I don't want to have super high details...where the whole image is jagged and constantly shimmering.
In conclusion: I vote 1080p.
Furthermore, lets not forget that it is not 1080p or 60Hz. This is per se not an exclusive festure. It is in the hands of the devs to deliver both, 1080p and 60Hz. In my test with PC, I am much less sensitive to actual quality of certain effects (medium or high setting is often good enough, no very high needed) which cost lots of performance to maintain framerate at 1080p.