I bought the S4 last year, there were a few close options but the removable battery and flash memory slot made the difference for me among the premium android phones. I am also a big fan of the galaxy's screen, which I know is a deal breaker for some. After a year, I am definitely happy I could easily remove my battery the few times I needed to. The 64gb of flash memory has also been useful, not only for storing audobooks and podcasts (i have a 20 mile commute), but also for use as a portable drive utility for moving large files in unusual circumstances (for example, I wanted to grab a 10gb file from my father's desktop, he has a 1Mbit internet connection, so having 40gb of free space on my phone was quite handy).