Here is a picture of my Expedition One rear bumper, which is aluminum, and weighs 35 lbs. It is combined with a Teraflex aluminum tailgate hinge and tire carrier, for a light weight and uncomplicated set-up.
I have a friend that bought the AEV bumper and tire carrier, and it is HEAVY! Plus, the AEV bumper and tire carrier could easily win the Rube Goldberg award for most complicated bumper and tire carrier ever designed. My friend was a little underwhelmed with his.
2014 Wrangler Sport: Teraflex/Synergy 3" suspension lift, Fox 2.0 reservoir shocks, Tom Wood 1350 driveshafts, Dynatrac ProRock 60s w/ 4.56 gears and Eaton electric lockers, Warn front locking hubs, Currie Anti-rock front swaybar, Fox ATS, 37" Toyo MTs on 17x8.5 Vision Warlords, Poison Spyder bumpers and rocker guards, Warn M8000s winch, Teraflex tailgate hinge & spare tire carrier, Mopar head liner