Go with the Cane creek its an amazing shock, Orange spec the Five with the ccdba so there will be lots of support and TUNES about for it.Cane creek have a great setup with there forum (The Lounge ) . Air or coil is the hard choice lol
Go for the new Cane Creek Double Barrel air shock with the climbing system, not as heavy as the spring version and apparently the performance is fantastic. I couldn't speak, I run a RP23 kashima, but from what I hear
Coil is more predictably progressive, air gets super stiff in the last 10-15% of travel, depending on your settings. I prefer air, many prefer coil. Given the fact you're also worried about weight, go air