WHAT SHOCKS TO BUY: KYB VS Monroe VS Bilstein's

I talked to a guy at a local shop who rebuilds shocks. I was asking about some Rancho shocks for my truck, and he told me not to waste my money. They had Bilstiens for my truck for quite a bit cheaper than the Rancho's. He explained to me that most of the aftermarket shocks are actually Monroes with a different name on them, and the adjustable rancho's have just change the amount of fluid allowed to pass through something inside. He got too technical for me, but they KYB's are probably the same as Monroes. He said Bilstiens are the best for the money.

PS, I didn't end up replacing the shocks on my truck, I was just looking to get some RS 9000's so I could adjust them, but he talked me out of it.