I bought a Buckstop Bumper for my truck because I wanted a way to mount a winch. That said, since it's 1/4 steel, I gotta beleive it's going to provide way more protection than the re-cycled tin cans the factories use for OEM bumpers. It also came standard with a front receiver built in.
And yeah, it weighs about 190 lbs. more than the stock bumper it replaces.
Another one to consider are the bumpers from ARB, an Australian company. They specifically designed them to protect against kangaroo strikes, which apparently is a real problem down in OZ.