Need Help On College Choices?

I’ve got it down to Grinnell College in Iowa and St. Bonaventure University near Buffalo, New York. I currently live in the suburbs of Chicago. Bonaventure is a solid school, but I just don’t think holds any comparison to Grinnell. Grinnell has amazing facilities and the intellectual atmosphere is amazing. I love the strong liberal arts emphasis and free curriculum, along with the overall campus life. However, my parents are totally opposed to going to Grinnell. I was accepted into a dual degree BS/DO program (med school) program that basically states I have a seat reserved for med school at Lake Erie School of Osteopathic Medicine. However, like I said the school is mediocre compared to Grinnell and I have to live in that corner of New York/Pennsylvania for the next eight years of my life.
I know I can have fun either way I go, but I’m afraid building a network in Buffalo and having it destroyed after eight years when I go back to Chicago (I was born and raised Midwest and I know I’ll definitely go back). I’m just so afraid I’ll have to go back to Chicago at age twenty six without any friends.
My dad struck a deal with me though. My passion is history and I think I would do very well in it as a undergrad student so I can set up a strong foundation for grad school. And I don’t know if I want to be a doctor right now. I loathe biology. But then again, a lot can change in three, four years. I want to be flexible at the one of the best undergraduate experiences there is to be had. But my dad says if I go to Grinnell, he’ll force me to major in some kind of science. If I go to Bonaventure, I can major in whatever I want, because of the guarantee into medical school (so I’ll pick history). I would be completely in favor of being disowned by my parents and supporting myself entirely through college, but Ginnell requires a parental contribution.
My parents are just so adamant that I’m going to be a bum with a history degree and that I can’t go anywhere after that. I wouldn’t be so against Bonaventure if it I knew that I wanted to be a doctor right here and now. So I’m in a tough position and I think it’s past negotiating with my parents. Please give your thoughts, along with your experiences in job markets and different degrees.
(Note: Expense of the colleges is not an issue, because Grinnell is way cheaper than Bonaventure.)