Under "Floor-Structural", they list tubular crossmembers. These trailers appear to be pretty evenly matched. You'll need to layout everything, spreadsheet-style, I think, to keep track of it all. Whew! Neither of their V-noses look very deep. Check the length. Mine is 30", for comparison. I don't know if that will play a role in potential expansion (meaning a 3rd stander or ZTR or whatever). If I didn't have the extra wall angle of my V, I couldn't get the 42" onboard. Meaning, if the V was any shallower, say only 18" of length, I couldn't get it in there. Just talked to the dealer and he said he's never had a torsion fail, under normal use. However, smacking the wheels into an abutment or putting a small dozer on 3500lb axles has caused replacement. Haha. His bottom line was that the least maintenance-intensive, most reliable is torsion. The axles are isolated from one another so the torsion will ride nicer. With springs and rockers, when the front axle hits the bump, it sends input through the rocker to the second. Then, the second axle hits that bump and sends input back to the forward axle. It's a lot harder on the trailer, taking all that vibration and impact. I hope you didn't think this was going to be easy.