Not sure about pharmacy, but I know that for dental hygiene this year, 130+ applicants competed for about 40 spots.
I don't attend Loma Linda, but I've heard plenty from friends who do... A good number are Adventists who've grown up in the Adventist school system since grade school. Probably with parents who are doctors/dentists, and live in the Loma Linda area, and went to its sister undergrad school La Sierra University. Apparently, due to this sister school relationship, it's easier to get into Loma Linda from La Sierra. extra admissions dibs to those whose family members are prominent members of the adventist community, or are in LLU. (How does LLU know who you're related to? Mention it in your essay, and say how much these people have inspired you, etc.)
the students are actually really friendly within the departments, but I don't know about between departments. Like most other schools, they probably don't really know a lot of people from other departments. I hear that LLU does hold their students to a pretty high standard though, and when grades start to drop, they bring the student in to a committee... which is pretty scary, getting dragged in front of an entire committee and being scrutinized.
they also do a lot of evangelistic mission trips.... to Africa and such - great if you want to see the world, do your job, and help people.