Great thread. Prior to reading it I was convinced I would get the Plus. After reading this thread however, I'm leaning towards the 4.7" model. Not because I'm taking most peoples' word for it, but because I'm visualising myself in the same predicament as alot of those already posted and it is swaying me away from the Plus.
Based on what has been written in this thread thus far, it pretty much comes down to:
larger screen, higher res screen and better battery,
versus
portability, convenience and less lag.
Ideally, Apple could have struck a balance between the 2 and developed an optimised version taking both their strengths, but it didn't so now we are forced to choose and in effect forgo one set of advantages for another set of advantages. Is it too simplistic to suggest that in the next major hardware upgrade, Apple makes one model (only one) and renders it 5.1", ie add 4 inches to the 6 and shave 4 inches from the Plus? Meet half way? I don't know because at this stage I'm still using a 4S due to lack of supply in my city (Melbourne).
Even if Apple disregards optimising the 2 models in a future iteration and just took advantage of the extra real estate on the Plus model by adding software features such as split screen, widgets, etc etc, then that would probably be good enough for me, or, enough for me to put up with the inconvenience of less portability and 2 handed use.
I've played with both models in the store and the Plus felt and looked magnificent and I really wanted it. But again, I'm visualising myself using the Plus in everyday use and I can picture myself thinking "what an inconvenience the Plus is when on the go". This is not to say that I won't think what the heck and I get the Plus anyway, but the whole portability/convenience factor is starting to play on my mind.