What are my chances of getting into Northwestern, Princeton, UPenn, Cornell?

[Joe]

ACT: 33 (35 Math 34 English 32 Reading 29 Science 10 Writing)

Unweighted GPA: 3.72,Top 25% (My class is inflated) 250 students

Clubs/orgz/sports: FBLA, Quiz Bowl, Power lifting, Wrestling

Probably a below average essay (have not written it yet)

AP Lit, Psych, Calc, History

I have not taken the SAT Subject Tests, but plan on taking Math II (Very Confident) Lit (Semi Confident) and Physics (Not very confident)

I am planning on Business.

What are my chances for these schools? Is there anything I need to do/fix to better my chances? Do I need to take all three subject tests, or at all?