the XLT is not worth the meager up grade in perks. It's a case of staying low and getting the best vaule for the $$$$$ or going all out and getting all the bells and toys. The XL has more room if your a taller driver, no power window switchs that can hit your leg. ( XLT has longer door handels )
The 4.6 is the better engine than the 5.4 3v, my 04 F-150 xlt was a basterd, my 05 work truck, a XL 4x4 with the 4.6 is awsome to drive in comparsion to the last 2 F-150's I owned.
My daily driver that replaced the 04, is a brand all the Ford guy's and gals hate and I do enjoy my Ford work pick up, but I'm never ever going to go back to buying a F-150.