i like the idea of having a hitch receiver in the bumper...
then you could use one of the receiver mount winches both on the front and rear, and be able to pull cars onto trailers in front or behind you

 

i was considering doing a receiver mount custom front bumper. then i could just put the winch on the front or rear. or leave it at home. minimizes it's exposure to weather, and no extra weight when i don't need it. i just worry about the lateral strain on a receiver.
something like this. Tomken Machine TMF-0627-B - Tomken Front Bumper with 2" Receiver in Black for 93-98 Jeep® Grand Cherokee ZJ - Quadratec
2" Front Receiver for Winch Multi Mount - Page 3 - Toyota FJ Cruiser Forum