Just as a heads up: AP Chem covers basic Chemistry and you'll probably get no credit for that class if you're a science or engineering major. If you're majoring in something like Art, then it'll probably fulfill your science requirement. Same with AP Physics B (not C). Covers basic Physics and won't really count for scientists and engineers. At my school they only take C credit for biology majors if you get a 5 on the exam. You have to take their courses for physics/chem for engineers/scientists. AP Calc (which is pretty easy btw) however counts for credit. Check with the school you want to go to before you think you can skip science classes.
Chemical Engineering isn't all about Chemistry. It's a mix of Physics and Chemistry in your engineering classes.
I'd say if you really like Chemistry and Physics and interested in doing hands-on work, then go for Chemical Engineering. Otherwise, go for Computer Engineering.
I'm a Computer Science major. I was considering CompE but realized that I do not want to work with hardware (I'm not really into circuits and all that jazz).
Will you be interested in working with hardware? If yes, go for CompE.
Are you like me and want to focus on software and other computing fields? If yes, go for CS.
Computer Hardware engineers make more money on average than Software engineers, but there are fewer hardware jobs out there as well. A lot of CompE majors end up working with software probably because of this fact or because they become more interested in software once they graduate (but who knows).
I would say that the CompE major is one of the hardest since you dip into electrical engineering and computer science. You go into theoretical and practical things.
List of CompE classes you'll take (at my school, but probably the same at most schools that have CompE majors take half EE and half CS) http://student.engr.ucr.edu/majors/CompE%202010.pdf
CS classes: http://student.engr.ucr.edu/majors/CS%202010.pdf
Chemical Engineering classes (you take a lot of science classes, including OChem) http://student.engr.ucr.edu/majors/C...hem%202010.pdf