Which brands can stand up to hard use year after year?
What kind of failure are you talking about?
In terms of scales falling off, I've got a bunch of Victorinox and SAK knock-off laying about that have lost their scales partially or entirely. Different traditional scale materials wear and fail in different ways. Bone can crack. Wood can nick and eventually crack along the grain. Riveted plastics or composites seem the toughest.
In terms of springs breaking, that appears to be a crap shoot. It's not something I worry about.
In terms of blades holding up to hard use, that's a blade materials question. Which is best depends on the type of cutting you're doing.
In terms of integrity of the pivot and bolsters, I think that depends on the quality of construction and at this point, I think the better question is who is making crap knives? If durability of joints is an issue, I would steer clear of the old Ulsters that were made with the Swinden key type of assembly. Beyond that, I think one would be hard pressed to make a case that any of the US made slip joints are hugely better or worse than others in terms of the durability of their pivots. Fit and finish and aesthetics will vary, obviously, but it isn't clear to me that is tied in any way to the integrity of the joint.
I'll second the nod to the classic friction folder - the Opinel. That's definitely a case where the durability comes from it's drop dead simplicity of design. Nothing left to take away, as St. Expurey correctly put it. And lastly and obviously, the Buck 110/112s are super duper durable, but they ain't slip joints. Holy bolsters, batman.