If you aren't already invested in Apple (iMac, iPad, etc
.) then you really don't need an iPhone.
The Moto X is ok, but I like the Galaxy phones better than the Moto X because you can add memory and add a new battery.
That said, I currently have the Moto X with Republic Wireless. But I miss my iPhone and now that ATT has the cheaper plan, I think I will be going back to an iPhone and selling my Moto X.
As an Android it is ok though. I like the Google now feature and the larger screen.