The big debate

OK, so I am soon due for an upgrade on my phone and am now faced on which phone to get.  The I-phone 4 or the Droid X?  I have an I-pod touch and love it but I have heard some negative reports on the I-phone.  The decision is going to be hard so that I why I am starting early checking and reviewing which one I should get.  Do you have any thoughts on the matter?  Let me know.