Of course they are alike. Its a phone. If anything the major differences I've seen:
Android owners: mostly people who want the cheapest phone possible or nerds who want more features/control
iPhone owners: mostly people who want something that just works or a status symbol
At the end of the day theres only so much you can do with a smartphone. And the vast majority of us are doing the same shyt on them from day to day. Calling, texting, facebook,...