Vulcan. Believe it or not, I am logical--with a 100% in high school Euclidean Geometry! And, if you've ever read my answer to an older question, "If you had one wish, what would it be?" (my answer was world peace), you'd know I don't have the warrior instincts of a Klingon. Besides, I'd rather have pointed ears instead of a ridged forehead--elfin ears are much more attractive. And, who knows, that Vulcan mind probe might actually come in handy.
What a fun question--thank you for asking!