So what division did everyone pick?
Waffled for quite awhile but ended up going Prospectors. My favorite part of Xenoblade is definitely exploration, and collecting minerals and Miranium seemed more open-ended than putting probes on every land hex. Don't know how I feel about the Defense Up perk. I usually don't like to draw a ton of aggro to my main character, but maybe I'll try to tank the game.
I feel like picking up online rewards when not really participating is cheating somehow, but I'm doing it anyway. Prospectors had Rank 3 and had a bunch of free presents available, so I get to start out with 30,000 more money than usual. Feels like I didn't earn it, though, so maybe I won't in the future. I dunno. With all the resource management in this game, maybe I should just take whatever the game gives me.