UW really cares about essays - particularly for DA. Numbers lead the way, but you have those (typically a 30+ ACT and a 3.85+ unweighted GPA will be above average for the UW, and for CS DA, a 3.95+ and 34 ACT or 1530 SAT). It all comes down to your essay, and IS is a huge advantage for DA at the UW. Good luck!
EDIT: 4s on those exams are not bad - and are completely fine for the UW, seeing as though they receive course credit at the UW!
UW Admissions does not look at AP scores. I don’t know about the CS school when deciding the direct admits, but you are not required to submit AP scores for admission. More important is the grade you received in the course.