I use 24G Nichrome 80 in my RDA's, especially on a mech. It has lower resistance, heats up quicker, and is a lil easier on the
batteries. You can add a couple of wraps to your standard builds and get a lot more vapor at the same resistances. The wire you have is gonna be slow to heat up on an unregulated mod and it's gonna eat up a charge on a pair of 18650's in a hurry. The 26 isn't so bad, but the 22 is a big chunk of metal. So is the clapton wire you have, but it's probably your best bet if you don't want to/can't get more wire.