I've had both and was happy with both. Concrete may need cracks filled over the years and, that is always unslightly. Sometimes pavers lift a bit in spots but easy job to remedy. I've also had a decorative concrete driveway made to look like real brick. That wouldn't show cracks as much as plain concrete. In the end, after all considered, pavers are more expensive but, I would do pavers for ease of replacement if necessary.