First 4x4 owned, researched the hell out of the market. Love idea of Landcruiser for their near-perfect reliability, but my G hasn't left my by the road (or off the road) in almost 2 years of ownership.
Accessories are available, but not as easy to find as flipping through Offroad magazine. The community offers customized rear bumpers, customized ladder, stock roof-rack, stock cattle-bars or modified ARB (Landcruiser 75/78/79 if you can find it) front bumper, and of course winches and roof-top tents are stock as well. Oh, and I haven't seen anybody else but Hummer owners sporting Hutchinson beadlockers, and they really make the military look, if that's what you're after.
Have always loved the boxy look of the Defender 110 NAS, but afraid of the service issues. So, G isn't perfect vehicle, but I think it falls somewhere between the 110 and the Landcruiser, so I'm happy as a clam in mine.