From a structural standpoint, the bright cut pavé will be more durable. This is because the modern pavé does not have a sidewall. This means the diamonds are not protected within a channel, but right on the surface with nothing but tiny beads holding them in place. It is a good look for a ring to be sure, but also a good way to lose a diamond.
Another problem with the modern pavé is that it weakens the metal after the jeweler cuts a row of cups to hold the pavé stones. That makes the metal choice crucial. Platinum, being a stronger metal than gold, is a good option.
Pavé setting are incredibly hard to resize. Any distortion to the ring metal can damage the cups, which can push out the pave diamonds from their little prongs or beads. With more pave set on a shank, you would have to contend with a higher number of vulnerably placed stones.