answer:I recommend taking both. Figure out which ones the colleges of your choice require, most will require one over the other. That will influence which ones you take. ACT is more based on actual stuff learned in high school, if you do well in high school, you will probably do well on ACT. SAT is all about test taking skills and strategies. Not as much emphasis on actual knowledge, but more on how you can apply it etc. So in a sense, you don’t need to prepare for the ACT, but you should skim a SAT prep book. I can’t judge which you as a person would do better in since…I don’t know you :). But, I recommend just taking a practice test from both (without any preparation) and see how you do. That should be a good indicator. Good Luck!