I'm also going to Loyola
As for recommendations on where to live, you'll be safe anywhere in the valley south of the 101, Pasadena or South Pasadena, most of the Westside/Santa Monica, South Bay (Manhattan/Redondo/Hermosa). Hollywood and Hancock Park can be good, but there is a lot of sketchiness very close by. My husband is a cop, and he said he wouldn't live anywhere between the westside and downtown, but then again, he only deals with the worst case scenarios, and there are a lot of pockeets that are nice. The problem is that these nice pockets can be a block away from not-so-nice areas.
While I'm married and live in the West Valley, if I was a single gal moving to LA, I'd probably focus on West LA/Santa Monica (I lived in Westwood for 4 years and SantaMonica for about 6 and loved it) , Sherman Oaks/Studio City, and Pasadena. Good nightlife, lots of young singles and fun. If you are up for a REALLY long drive, the South Bay is also awesome, but the distractions could possibly be a little too much
Anyway, see you all in August