startrekholidays is a ficathon for which you can sign up here, as I just did. All ST incarnations are represented from what I could see, and crossovers between shows are possible, too.
Day 27 - Character You Would Date
Probably several if they asked, as none of the shows is without smart, attractive people, but I can't say there's anyone I really want to date. I'm more the matching them with other characters or their issues type.