The two that most caught my eye off your list had to be Merlin and Silena - especially Silena. Awesome character choice right there. I'd absolutely love seeing either of them over at eachdraidh, where both would have castmates. Merlin would have Morgana and Lancelot, Silena would have our pretty large Percy Jackson cast!

The game is comm-based on Dreamwidth, more than certainly backtag friendly, and the AC is really easy (10 network or 5 log comments a month). Pace is medium, I'd say, and the navigation post for all the info is here!