You're absolutely RIGHT!! No matter your gender, go for what makes you feel best and turns you on the most, but more importantly, concentrate on the person, not so much the cock. The best cock in the world on the wrong person may do absolutely nothing for you.
Pursue all cocks, but always go for that which you want the most. I'm a size queen so I always look for the big ones. And the first place to look for big ones is black cock.