I've asked my friends a question like before and their usual response is "Oh, you would most likely be Darkrai." I can actually kind of see myself as Darkrai. In Pokemon Platinum the info on Darkrai is that it gives others near it nightmares although it is not a malevolent or conscious act but a defense mechanism, and it is usually very nice. I'm a very nice guy but I tend to creep out people around me, based on how I dress (I'm 6' 3", I wear a black trenchcoat and fedora), my warped sense of humor. I also will say something that will creep everyone out. I saw someone at college that I hadn't seen since fourth grade and I immediately knew them right away told them it was based on their skull structure (the person's face didn't change very much). I was poked fun of by my friends for saying, and I quote "One of the creepiest things to tell someone."
The other response I would get was"I see you as a Noctowl." I can see myself as that as well, partly because I love owls, I'm a night person and I tend to go for Psychic type pokemon.
I also see myself as Giratina, Espeon, Kabutops, Hypno (my very first level 100 pokemon by training it, in Blue version.), Mewtwo, and Lugia.
If I could have 4 pokemon in the real world as pets or companions they would have to be Suicune, Espeon, Noctowl, and Darkrai.