Ok guys, thanks once again for all your input.
I am pretty much sold on the iPad Air 2 right now.
BUT.....I have a few more days before I have to sell my iPad mini to get the Air 2, so I still have time to change my mind. Basically at this point, I would either get the Air 2 now and get the 6 or 6S when my contract expires next year around August. OR I would get the used 5S now and get the Air 2 when the refurb models come out. So basically, is the 6's size really that much harder to manage than the 5S, enough to make me choose the 5S over the 6 or 6S?
Because, if the 6's size is difficult to get used to, I will get the 5S now and enjoy two years use out of it. Oh and BTW, when I say two years use, what I mean is have a good, fast, functioning phone with the latest version of iOS and most of the new software features. Like what the 4S was through iOS 7, though now with iOS 8 it lacks a few features.
So, should I wait for the 6S, or just get the 5S now cause of the form factor of it????
I would appreciate any opinion on this, especially those coming from 4/4s who upgraded to the 5S or 6 and why they chose what they chose. Thanks!