Hi Krj957,
First, congrats on your daughter getting into two super universities! I’m sure she will be happy at either one. With regard to who gets into and out of Honors at BC, only the admissions counselors know for sure. The website says that it looks at GPA, test scores, recommendations, and essays. but I’m also guessing that the combination doesn’t go by hard and fast rules, as is true with all admissions decisions 
If I were looking strictly at your daughter’s numbers, I too would think that the ACT score would be the lower item in her stellar stats, but it’s only a guess.
Don’t forget that the Honors program is also something that she can get into for her sophomore year.
No matter what she decides, I’m sure it will be the right choice for her.