Here is a good comparison between s3 & s4....htc one is really a different animal with a camera so different and fixed battery and no memory slot... Not in the running for me....
What happens when you drop it in water or it gets crushed? As long as the sd card survived you would still have all your goodies!
Sounds like an apple device with so many limitations with glitter to stimulate.
I believe in optics.... Digital only amplifies and enhances what's brought through the optics... On the s4 the lense itself*is actually 2-3 times bigger. Not sure how that stacks against the "one".