I would have to say most of the gods of SK are great. But a few that stand out in the past:
Freesia - Elven goddess that changed my RP and kept me from getting into too much trouble. She was great! I think she P'ed off some people in the Pantheon though..
Lorani - my first god on SK - think I met Lorani once
Isendor - dwarf god he put together some nice script quests to make the game fun, challenge and tough.
Dulrik - It's obvious I don't need to bloat his ego any further but he's the strict - xp cursing - by-the-book IMP that everyone fears. Oh wait, I think that was because we always seemed to meet (when I first started the MUD) when I was exploiting a bug
It's great that he does not hold a grudge (at least not forever) and he's always around to help if he has time.
Nightfall - "The Wastelands" - creation of this area had no apparent reasons other than to kill stupid folk to go here. For that reason, and the few hundred hours I spent there, he must be remembered. Lets not mention being his high priest, high mage and learning a lot of stuff from him. He also loved the mud and was not corrupt.
Dreddnar - I hated him as a mortal! He was always out to get my characters but he was a good RP'er and did a lot for the mud. He was somewhat corrupt but hey he was the god of evil. Once you got to know him and RP'ed he was great at spicing up the game. The krychire wars were one of the best events IMO.
Yopp - Yopp was great! I knew him but not as well as I could have. His alternating colored fonts was great but of course nowhere near his personality.
Jinn - sorry I couldn't stand her... sorry Jinn!
Yenko - I have a mixed opinion here. She could be cold and I think she slayed me a few times. She also added a few great RP opportunities. She was also a good builder.
Sorry for anyone I forgot but this is getting too long.