Here are a few of the guys I've played before and a bit about each of them:
Ragamuffin - a cool Canadian who happens to be a keyboarder (a guy who does not use the mouse to handle the yaw and pitch movements and controls, which is very difficult and inefficient, but he does it somehow), who's got a low ping (measurement of lag) and a heck of an aim! Not currently in any formal alliances, but loosely with Rah, Cisco Kid, and myself, ReaperBot!
Rah - a 30+ year old husband who happens to be the administrator of Gooland III, my personal favorite server. He's a pretty good shot and has good reflexes, but his strength lies in his allies and ambushes.
Troy McClure - Troy is easily the best player I have ever had the honor to get slaughtered by. Troy is remarkably fast and well armed! He is so fast he is accused, often, of cheating. He works with Rah whenever they are together. They are a potent combo.
Cisco Kid - My neighbour and best friend Art. He's 20 and into computer security stuff. He's a big Linux man, and trying to convert me. Anyway, Cisco's extremely fast and a superior shot, but less than reliable as a teammate, as he'll double-cross you as soon as it's convenient! On the whole, he's one of the ten best guys I've ever seen
L_Syd - My friend and classmate Steve is a very fast shot, has great reflexes, believe me. I don't much relish fighting him, as he's more than challenging, but I can take him! He's a little unseasoned in a few ways, but his reflexes are gold.
Shakes (QCOD) - Shakes is a member of the Quake Clan of Death (QCOD). He's extremely fast and nearly as cocky as I am. Shakes whines constantly though. Don't mess with him unless you're elite, but prepare to hear an amazing mix of complaints and testosterone!
Warthog (QCOD) - Warty's a great guy. He doesn't complain too much and has superior reflexes and he works well with others. This kind of guy makes Quake worth it!
Albino (QCOD) - Albino's pretty fast and managed to break both of his legs recently in an auto accident in New York. He's a friend of mine, but he's a bit annoying at times. He's trippy.
Leviathan (QCOD) - Levi is one of the more respectable QCOD's. He's fast and serious. Not somebody you mess with 'less you got the skillz to back it up. He also makes good jeans!
Kracken (QCOD) - Kracken is a dead shot with a rocket launcher and fast as the wind. He's one of the guys that's fun to duel with and great to team with. There are a few faster guys, but he is a very solid player.
Greep Knight - Greep is one of this guy's many guises. He's a bot, which means he uses a computer operated auto-aim program to do his aiming and shooting for him. This means that he's cheating terribly. It works though. We think that Rah finally managed to ban him from Gooland III. If he has, that's the last we'll see of this guy. People like him ruin the game.
Crazicracker - Crazi's a pal of mine. He's another member of the aforementioned top ten. He's fast, reliable, a crack shot with any weapon. You don't take him on unless you're elite.