Not to sound egotistical (LOL*wink*etc) but I couldn't pick just one. The first one that came to mind, due to combating a lifetime of other people's "shoulds" was my introversion. I wouldn't change that cause I never feel alone. I gather from some others that that's, indeed, a blessing instead of the curse I once thought. Next, I guess, would be my love of animals. What a joy they've been in my life! Last, but certainly not least, would be my alcoholism and learning how to lead a peaceful life through it.