Thoughts between the iPhone 4S vs 5S?

What are your thoughts, possibly as current or past owners of either of these phones, between the iPhone 4S and 5S?

What did you specifically like about the given phone such as the performance or features, and what would you like to see improvements on?

Is there one over the other that you would personally prefer to use in today's technological world?

Added (1). Will it make a difference that the may both use iOS 7, 8, and 9?

If I back up my iPhone or reset it will I lose my Favorites photos or my other albums?

If I back up my iPhone or reset it will I lose my "Favorites" photos or my other albums?

Added (1). AND, if I backup my phone on iTunes on my Windows PC, will it always save all of my photos and videos as well?

AND, will the iTunes playlists I've modified and created on my phone be overwritten by whatever playlists and arrangements might be on my PC?
I would want the phone to overwrite the PC iTunes playlists…

How to competly delete Instagram off IPhone?

I recently got my Instagram "deactivated" even tho I can log onto my Instagram on other peoples phones… But no one can log onto theirs on my phone? I need to delete Instagram All the way, like where you need to enter the Apple ID not just click the iCloud button… Please help. I don't even know why my Instagram was deactivated I didn't post anything bad and I wasn't rude to anyone

Icloud account forgot password?

I forgot my icloud password and email's password too in my iphone. I sent it to every single apple store they can't fix it. U also can't jailbreak it without the icloud password… Is there anything i can do? I heard about this app "ifile" i can delete the account from there but i can't purchase apps if i don't have the password. So can i somehow purchase it on another phone and send ifile to my iphone?