Westbound. You're guaranteed more scenery (unless the train is running ridiculously late).
Eastbound is nice too, though. I did that trip in March 2015, and while I didn't get to see as much scenery, it was still a beautiful trip.
I’m staying at a wonderful Airbnb that is only a block from the Grand Canyon Railway station. It’s only $60/night and has a (free) washer/dryer.
I’m not sure of your trip date or their availability. I’ll send you the link in a private message so you can check it out.
Speaking as someone who used to commute in Metro Detroit, I can say, with confidence, that you have absolutely no idea what you’re talking about.
Also, you may want to check out 94 between Kalamazoo and Battle Creek and 131 between Kalamazoo and Grand Rapids.
I know we're getting wildly off-topic, but I can speak to this.
When I lived in Ann Arbor (1999-2001), I worked in the file repository for the University of Michigan Medical System. It was full-time on third shift.
The building was completely separate from the main medical campus and set up...