Should i buy the IPhone 6 or the 6 Plus? - 1

I've been planning on getting the 6 for a while, but now i'm considering getting the 6 Plus.
Is it really worth the extra money?
Is the camera that much better on the 6 Plus?
Is it noticeable that the screen has better quality?
Is it really too big to hold in one hand?
Does it really bend?
Best answer goes to the person who can answer the most of my questions.

IPhone 5 water damage or loose connection?

I dropped my iPhone 5 down the toilet on a night out and was out for a fee hours after it got wet… The next day I put it in rice and left it like that for a few days as it had been left wet. The phone eventually come on but the screen was playing up. I ordered a new screen and replaced it my self. The screen works fine on a low brightness but will eventually go black, if the brightness is turned up the screen flickers quite bad.

The phone works fine but the screen goes black and will come on now and again. Would this be due to water damage or the fact I have a loose connection from putting it back together my self?

Also the front flash on snap chat doesn't work anymore if that means anything to anyone.

IPhone 5s touchscreen keeps freezing?

Every now and again, 5 times a day usually, my touchscreen will become unresponsive to touch. All the other buttons work fine, and all I have to do is lock the phone, unlock it and it's fine. It's annoying however, any help will
be appreciated.

Wireless hard drive assistance?

I want to set up a wireless hard drive so that I'm able to access its contents from my phone, I've searched and searched but can't find my exact needs.
What I need help with is setting it up, I have a 2TB hard drive and an internet router with wireless capabilities and a USB port, what I don't have is an Internet connection, if one is needed to update the router software, or for initial set up that's ok, but it will be primarily run well and truly off line.
I need to be able to access it from my IPhone (Jailbroken) and preferably also my Xbox one and laptop.
My idea for how it would work is this:

hard drive---router---wireless extender---device/s
|
Xbox one/laptop
Please let me know if there's anything wrong with this, and if so how I can fix it.
Any help is very much appreciated.

How to hack an Instagram account on your iPhone?

My friends 33k Instagram account got hacked and she's tried everything and can't get it back and the hacker won't say anything so my last resort is to hack into it myself, but I don't know how

Item currently not available in US AppStore?

I have an iPhone 5c. There's this app called free music. There has been one problem with it and so I looked to see if anyone else had the same problems by looking at the reviews but when I went on the AppStore I couldn't find so I went on to the app and tapped rate this app to go to the app but I got the message "the item you've requested is currently unavailable in the US Store". But the next day the app works. Not sure what's going on or what to do.