I am definitely a player, I'm not very good at building so I usually find a house I like on the gallery and tweak it to suit my family. I love playing with generations and playing out their story as a family, and creating different dynamics.
I tend to change my sims clothes every so often. Especially when they age up, or hit a milestone. I like how it kinda shows how the sim as progressed and gives them a bit more personality.
I chose vampires, mainly because I bought it and then never really played with it at all. Whereas I have gotten quite a bit of use with all the other game packs I bought.