6 Plus because 1080p display, OIS and longer batter life.
6+, looking forward to having a smaller, lighter phone.6 Plus
Just youI'm getting neither but if I were to get one it would be the 6.
On a side note is it just me or is it that the in the S versions all the kinks are worked out.
Personally if I had a 5s in particular I would wait for the 6S.