A few notables...
FlyRetired: I've known him for years and consider him one of my best Net friends. His posts are always informative about WW1, which he always seems to back up with copious facts, pictures and charts: A true fan of the WW1 era. Also, he is recently acting as the conduit for updates on the upcoming WW1 sim: Knights of the Sky.
Viks: He is one of the KOTS developers and also has a good sense of humour. Any post from him means the project is still in the works.
Polovski: He is always helpful despite the flak he sometimes deals with for the CFS3 mod OFF. A patient man and always friendly.
Oleg Maddox: Of course.
I imagine droves of simmers hanging on his every broken sentence and it makes me laugh. He is a real success story of the simming world, creating a Renaissance of combat flight simming when it was needed most.
ArgonV: Because I have to admire a man who still continues to plug away improving the largely forgotten SDOE sim. He always seems excited about something new he has found managing the WW1 Mod.
McGonigle: My other passion for sim racing is always satisfied by reading his well-written articles. He also saves me from having to monitor the racing boards for new Mods (I would not know where to find them half the time...).
Ming: His "meat and two veg" esoteric postings are amusing to read. I imagine him as some ex-Pat living in India, drinking copious amounts of Gin from teacups and complaining about the heat.
Dante-JT: I am not a big jet fan but the work the small development team is doing for Jet Thunder looks great. I also like his nick-name for some reason...
Joe, Allen & Rilex: These guys seem to live in the tech-forum. I find them all informative and a good reference for what's coming up in gaming PC tech. Plus, it is amusing to see them verbally spar over the merits of a motherboard.
Moderators (or the "Red Ensigns of Doom" as I like to think to them): Always enjoyable to watch them smack down some tool forumite who seems content to ignore courtesy and post WCE nonsense in the wrong places and trolling attempts all around. They keep this place sane!
Main Page: Anyone who takes the time to compile and write stuff up for the main page. 99% probably bypass it on the way to the forums but some readers appreciate it. I salute you!
Lurkers: Their posts are super-easy to read and their hits keep SimHQ chugging along. I also like the fact they don't blather on much.
Dantes (Me!): Because I try to spell check every post and make sure it is worth posting before I commit "submit": I hate mis-spelling things. If my grammar and spelling are decent, most people perusing the post tend to overlook the lameness of the contents.
S!