I had to make a lot of compromises for those votes. For example, in the action category my pick was Shingeki no Kyojin, but since there was no Railgun (on my top 3 of the year) in sci-fi I voted it there. Similarly, I had to vote for Sakurasou in romance otherwise it wouldn't have had any votes from me. Drama was taken by Chihayafuru (my overall favourite series of 2013) since it was the only category where it could be voted.
I don't think so, mostly it's because I don't give 5 stars to a new series unless its first/second episode really (really) impressed me.
There are several series aiming for the top this season, such as Railgun S, Shingeki no Kyojin and Suisei no Gargantia. Plus there are two excellent comedies such as Hataraku Maou-sama, Hentai Ouji, and perhaps OreImo 2. Also RDG for some mistery. Not a poor season at all.