so I have an iPod (8GB). I didn't put much stuff in it, but its already running out of space (reserving at least 1GB space). I reason I'm struggling is because for example, the note 2 is a bit expensive, the s3 (rumor) has low battery life...not sure about other phones though
If you don't want 8GB, pony up the extra $50 for the 16GB.
If you need a removable battery or microSD expansion, get a GS3.
If you're on ATT or Verizon AND living in an LTE area, maybe an iPhone, Optimus G, or whatever other phone that supports LTE.
If you want freedom from carrier BS, your ATT or T-Mo coverage is good, want the latest software updates, cheaper monthly plans and lower costs in the long run, w/ one of the fastest phones on the market, and you don't fall into the above categories, N4 all the way.
Probably a question of design or security. I'm sure there's a reason why Apple and HTC don't include it. Big fan of microSD here too. I have a SII w/ 16GB storage AND 16GB SD card, and I've grown quite fond of this setup.