I had a steel ARB rack. Great, strong, but farkin' heavy. So I sold it. I couldn't justify the price of an ARB ally rack at the time, and I still can't really, so I just opted for a cheap alloy rack as I was in need for one asap. That was some three years ago and I still have the alloy rack. Its taken quite a beating, had big loads of firewood thrown on it. Its a bit bent in the middle now because of the firewood but its still going strong. Its a four post rack so it has plenty of middle support. The base looks like a security door if you get what I mean. I haven't taken it on any long corrugated roads though, this would be the killer for any cheap alloy rack, or cheap steel rack I reckon.

I'd be keen to hear what others have got too.