I don't think I'd be interested in an iPhone with a bigger screen if it kept the same aspect ratio. I still find the screen shape a bit weird.

If they go with a bigger screen I'd prefer it to have a standard aspect ratio so that movies can be displayed at their actual size and shape.

Size is about preference. I know people that love the Galaxy Note 3 because of the size. That is fine, but that is not something that would make Apple bankrupt if they don't release. Yes, there would be people wanting an iPhone because of it, but it wouldn't make that much of a difference in market share.

Nothing beats a feature-rich phone. If you can get a phone that can do a lot of useful things while being easy to use, that'll be the best phone. Android is somewhat complex (not hard) to use, and a lot of casual users can't dominate it fully. iOS is pretty easy and straight forward, but lacks so many basic features is not even funny.

Apple has been lacking when it comes to OS. They have modified stuff from OS X, and simplify too much iOS. They are not consistent anymore. I liked that Apple wanted to make iOS more like OS X, then they changed directions and wanted to make OS X more like iOS, which is stupid. They removed a lot of useful features in OS X, and made changes for the worse like spaces. They have been doing the same with iOS.

I don't know what's going on at Apple, but someone needs to realize that the best thing is to make a full-fedge OS X (again, as it used to be), a full fledge iOS, which they can based on OS X, and the most important thing, being CONSISTENT! They just seem that they don't care anymore since they think their stuff sales by themselves.