since i found this i kinda had an urge to post mine
idk about the order beyond the first name.

violet - the levels this guy makes are something special imo, lots of good memories playing them back in the day. also more importantly he's been an inspiration for a lot of the levs i made in the past, and this is the guy i relied on when i couldnt figure something out in jcs

urjazz - was gonna bring you up but it looks like you got here first :P. i remember your crazy triggering system and that monopoly level you made - i learned a lot about jcs from chilling with you.

mike - your devres pack was probably the most creative (-)(-)(-)(-) ive played, and i enjoyed it even way after i lost interest in this game. i swear i'll beat it the whole way through without cheating, one day :P

blade - check out his sp levels, his formula is pretty basic but it works well and theyre really fun to play.

kirby - not really a conventional level designer, but this man had some gooodd ideas back when he was around.

blur - youre probably the only guy i cared enough to actually duel just so i could win and youd have to show me one of your unreleased lvs. good times.

p4ul - a lot of my best (imo) levels that i made and havent released yet are inspired in some way by what ive seen you do with jcs. otherwise i probably wouldnt have bothered making them

theres a lot of other people im not going to go into detail with, who i think are talented. i havent really been around to see the new things people are putting out, but these are the guys i remember from back when i played this game

btw urjazz - give me a shout, i probably still have some of them :)