if you want to do performance, get a manual.
if you want a car to drive normally, get an auto.
if you're into engine work, get a manual.
if you're into electrics, or car stereo systems, get an auto.
if you race, get a manual.
if you cruise/pimp, get an auto.
if you want total control of the engine, get a manual.
if you want total control of the wheel, get an automatic.