Don't rule Sony out, I've got the Sony Xperia Z, the flagship phone about a year and a half ago and it's STILL amazing! and stands up against my brothers Samsung Galaxy 4? (think it's that) My Sony is Waterproof, 4G ready, has an AMAZING camera and a 1080p HD Screen, so you can take AMAZING photos and see them in full HD! and the newer Xperia Z1 and Z2 are just as great phones with some slightly better stats, but for general use the Z is still great! After my Xperia Z I can't see myself going away from Sony, everything just seems right with it!
I'd suggest looking at a few phones from DIFFERENT companies, then going somewhere like Phones4U and asking to try them out