UART frame inversion
It looks like your oscillator is not set up right.  Your OSCCON:IRCF bits are  110, so they are giving you a clock of 8MHz, and your baud rate calculation is based on 8MHz.
However, you have PLLEN set.  This turns on the phase lock loop, producing an effective FOSC frequency of four times 8MHz = 32MHz.
Try 

SPBRG1=51