999000, Waystin, oldman, Dr7, BBaw, Ack Ack, Syko, Hajo, Kappa, *Nomde*:-), *Frenchy*:-), *Betty*:-), *Kermit*:-), *shegotcha*:-), Shane, Steve, Sads, Scotch, IrishOne, INK, doright, Lawndart, Silat, Agent360,SF, Dodger, PotsNPans, Morfiend, MtnMan, Fugitive.....
Some in this list are no longer in the game as noted.
I think these lists are rather subjective. Many in the list are simply very nice people to play the game with. Others are absolute grouches until they are helping you to learn ACM. Quality is quality whether you are grading cactuses or orchids.
I would vote for 999000 as number one. He was just as classy when I met him back in AW on the wrong end of his B17's tail guns as he is today 20 years later. I can not remember a time in the last 11 years oldman didn't compliment each person he fought with in the CT\AvA after the fight no matter who won.