I printed out Anandtech's PDF that gives the exact sizing of the iPhone 6 and 6 Plus which I then traced and cut out on thick cardboard to get a better feel in the hand than just thin paper. After messing around with both and placing them both in my pockets etc., I learned that...
The 6 plus is just too big!
I wanted to love it and thought I'd be swayed by the larger screen, slightly better camera and slightly longer lasting battery but as I compared and held the cut outs in hand the 6 feels much better. The 6 feels a lot more ergonomic in the hand and is a lot more pocket friendly. I like to whip my phones out of my pocket and mess around with it in one hand and with the 6 plus that definitely won't be possible..at least for me. Looking at the hands on videos it appears that the 6 is also a nice increase in size from the 5 and I'm sure the 4.7" screen will be plenty big enough for me as a phone. Remember we also have our iPads.
Maybe next year when Apple reduces the huge bezel on the 6 Plus and it's more manageable in the hand I will consider it but as of now for me anyway it is too big and longggg for my liking. Space Gray 64GB iPhone 6 for me.
P.S. Also if you decide to put a case on the 6 Plus it will be monstrous! I'm out on that.