Vampirism isn't really for someone who likes to fast travel. With that said, RPing a vampire at stage four (or any stage) can be fun.
Personally, I don't find being an assassin in Skyrim as much fun as I did in Oblivion or Morrowind. Oh how I miss poisoned apples. Are you going for a calm, cool, and collected type of assassin or a crazed unpredictable one? Or something else maybe? Even if you don't like to role play a character sometimes it is nice to come up with a few rp hooks.
Personally, I don't find being an assassin in Skyrim as much fun as I did in Oblivion or Morrowind. Oh how I miss poisoned apples. Are you going for a calm, cool, and collected type of assassin or a crazed unpredictable one? Or something else maybe? Even if you don't like to role play a character sometimes it is nice to come up with a few rp hooks.