Air quality in Ann Arbor is much better, except, perhaps, for allergy season. There are no smog days. During the school year, highs rarely above 80 (with humidity) and typical lows in winter are in the 20’s. AA gets about 60 inches of snow each year but less than half of that typically accumulates, Lots of students sled or cross-country ski in the arboretum or local golf courses. The campus is very accessible and integrated with the town -food pricing is oriented toward student budgets and restaurant quality is excellent. Students get free transportation on the local “the ride” bus system which goes around Ann Arbor (mall, grocery stores) and to Ypsilanti. There are also zipcar lots around the campus. There is a separate university bus system running between the Central, North (engineering/music), athletic, and medical campuses which runs every 5-10 min during the day, less frequently at night. There is also a bus to and from the airport 30 min away (Michigan Flyer) which most students use - it’s cheaper than supper shuttle.
Ann Arbor is very safe, and there is a cheap night ride service if you don’t want to walk. If you drive, traffic is very light compared to LA. People measure distance in miles not minutes. There are also great cycling trails, and canoeing / kayaking on the Huron river, golfing on the city and university courses, beautiful gardens and outdoor performances in the arb. Lots of water with lakes all around the area and the great lakes 45 mi away.
If you are in Social Sciences you will likely be entirely on central campus (good!) unless you are in one of the north campus dorms.
There are more events in Ann Arbor on any given day then the rest of the Detroit area combined. Sports facilities are really great and the University recently spent $150 million upgrading stadiums, club sport fields, and is renovating the student rec buildings. LA has far more events, but how many are a 10 min walk away?
As far as guys, SoCal has its own look. USC has a great film school, so draw your own conclusions. Michigan has a great performing arts program, but it is oriented east not west. You won’t find much, if any plastic surgery in AA, and most students are fit but not cut. Dress is uniformly jeans and T-shirts except for interviews and presentations. There are fewer Asians at Michigan than the California schools and the average skin color is brown(ish) and hair is black. Ann Arbor has more ‘normal’ looking people. People tend to hibernate in the winter going from dorm/apt to class and spend most of their time inside.
It all depends which you like better. Most students rave about their experience in Ann Arbor.
disclosure: MI alum.