Chance me for a T20 but I have a weak app [DE resident, 3.6 UW, 1450 SAT, for CS]

I see UWisconsin Madison as a maybe, but they do like OOS full pay applicants. However, CS is still super competitive.
UIUC has less than 10% acceptance rate into CS with average GPA being higher than yours.
Instead of U of Michigan, perhaps look at Michigan State.

Consider Drexel? Syracuse? College of the Holy Cross?