Dude, you can't do much better than Wharton. It's quite simply the top undergraduate business school in the country and possibly the world. With a wharton degress on your resume, doors will open very fast to you and the people you meet at school and the things youll learn on Locust Walk will prepare you to make tons of money. However, admittance into Penn and Wharton is extremely difficult, Penn itself is very hard, and Wharton is even harder. Hell, I didn't even get into Penn, I had to settle for one of her rivals. Good luck with that, I know tons of brilliant kids who couldn't get into Penn or Wharton but got into cornell (me!), columbia, even princeton!, emory, washu etc....
If your other two choices are just NYU and Temple, well Leonard Stern at NYU is far superior to Temple. NYU has come up in the ranks tremendously over the past years developing as a medicore commuter school in nyc to a top flight national university. So, I would go with nyu over temple, but do remember nyu has an outrageously urban campus. In fact the term "campus" is a stretch itself.
I know very little of Temple, other than its near Penn in west Philladelphia and is of moderately known prominence. I mean, I don't even think Temple is top 50 (yeah I know the rankings are dubious, but some schools always make top 50 like NYU and Penn and others don't like Temple). So, you should consider that, to be quite honest a Temple degree will do little to impress future employers and interviewers in a day and age where interviews and jobs are becoming so competitive, what with global competition.
So, as my parents told me my senior year, shoot for the best and do what you need to, to get it. The rewards will follow.
No pressure pal.