Getting a good GPA at Boston University?

I’m a senior who’s choosing between Tufts and Boston University. I want to go into medicine and to do that, I need to have the best GPA I can.

I was thinking of going to Tufts, but I was suggested to go to BU because the classes in BU would be less competitive and, as a result, easier to do better in.

However, I’m reading many articles that talk about how hard it is to get a good GPA at BU and how it’s one of the hardest colleges.
http://www.cbsnews.com/news/grade-inflation-colleges-with-the-easiest-and-hardest-grades/
http://coed.com/2013/11/15/here-are-the-16-colleges-and-universities-where-its-the-hardest-to-get-an-a/
Not to mention BU has a lower average GPA compared to other schools like Boston College, where the average is 3.0 vs 3.3
http://www.gradeinflation.com/

Should I rethink my decision and just go to Tufts instead?

And please don’t give me a ham-fisted answer like “You’ll get an A if you work hard”. I’d rather get an A in Tufts than do more work and get an A in BU.