We saw Carleton and St Olaf one day in early summer, and saw Macalester by itself at a later time. (We live in southeast, but have families in northern MN. That’a where we spend our summer)
My spouse’s family is typical nordic Minnesotans (I am not). Most of them still live in their farms. Anyway, given all that, I thought St Olaf was going to be easy win for my son. Lots of connections to being a part of Norwegians & familiar with ELCA, and even other MIAC schools (I went less selective ECLA/MIAC school, which my son will refuse to attend. 
)
Well, he loved Carleton. He wished it was in more of urban setting, but even ended up playing a pick up soccer game with students. At St Olaf, it only took him 5 minutes - it was over. He felt it was not inviting. Some of charming features to most of you guys describe, we could feel like visiting some relatives house with lots of past aggressiveness.
No decision yet in our household, but among 3, Mac won. Let’s see where Mac stands among other contenders.