I wanted to give people more background about the candidates. This is not about what they promise to deliver, but what they have done in the past, as seen from a mod's perspective. These are my subjective opinions; although I have tried to be fair, they should be understood to be biased by nature, especially as I am far more familiar with some people than others.
I anticipated putting some comments underneath each candidates' nomination, once the election started, but that's not an option. For want of a better place, I shall put them here.
The candidates (an arbitrary order):
Larian is a power-house. Number #3 in overall rep, he specialises in sensational in-depth answers that earn enviable levels of upvotes. He can cut through the illogic and get straight to the meat of the question. He has a history of promoting the site to others. Larian has experience as a moderator as well, at Astronomy.SE. Conflict of interest: If you keep Larian busy by voting him in, that will give me a chance to catch up and overtake him on the rep ladder!
Rory is a solid contributor - up in the top 9%. His focus is on answers, but quiet on meta. However, this belies his experience. A glance at his network profile, and you can see he is a prolific contributor to a number of StackExchange sites, including being a moderator of IT Security. This is a candidate with a lot of outside experience to bring.
Konrad is a prolific answerer. (He's only asked one question, but it got 22 upvotes!) He is also a consistently high-quality answerer. At the time of writing, his worst ever answer has 5 upvotes, which is a skill upcomfortably close to black magic. He is another experienced moderator on tex.stackexchange.com. (If you are not familiar with that site, it is about discussing tools that are used for writing scientific papers.) He has also been active in the meta-site, which should give you an idea of the direction he might take as a moderator.
Sam I Am
Sam's biggest challenge in this election is the anonymity of her mountains of contributions. She has a relatively low rep compared to the other candidates. (She's catching up, in the top 5% for the year.) However, behind the scenes, she has been a powerhouse of suggested edits and flags. If you contributed a post and when you read it back the next day it seems clearer, well-tagged and better written, there's a good chance you were touched by the SamIAm Edit Fairy during the night. Of course, Sam's mod-like contributions haven't been limited to copy-editing: her comments and flag queue shows a keen eye for understanding when and why a post is in trouble and needs help. I encouraged Sam to nominate herself, because it seems a great match to have someone in a mod role who cares so strongly about tending to the posts and making them as strong as they can be - being a good mod is a different skill to being a prolific answerer.
If you like what you see here on Skeptics.SE, you have to give a lot of that credit to Sklivvz, one of the pro-tem mods. He, more than any other person, has given shape to this site. He has a direct, no-nonsense approach which epitomises the skeptical attitude. He is very productive and puts in an incredible level of effort - this is reflected in both his reputation (#2 overall) and also his prolific mod statistics. If he isn't one of your three votes, you are simply making a mistake.
Fabian is a pro-tem mod who is a little more hands-off than Sklivvz (or me), but that shouldn't be mistaken for a laissez faire attitude. He can see through nonsense and doesn't tolerate it. He's one of those guys that when he speaks, you stop, listen and change your mind to match him. (Simpsons reference: Remember when Homer didn't want to stop watching the brawl between the mobs because there was an old martial artist guy who was hanging back and had't yet taken the decisive action to finish the melee?) Fabian earnt a lot of respect from me this year, and I heartily endorse him - you should be sending votes his way.
For me, Alain is the dark horse in this election. He has quietly earned himself a substantial reputation (top 8%) without really coming to my attention. (That is a good thing! His answers never need the special attention of the mods.) Looking back at his contribution history, I see solid answers and a good humour, and contributions to other sites too. I feel slightly bad that I can't say much about him, but I want to learn more.