A couple pages back, someone asking about the authenticity of university lifestyle....I feel a lot of the game content rings true.
For my 'canon' playthroughs, I have two main paths: how I remember acting as a college freshmen versus how I behave now.
As for how I remember freshmen year at college, some examples, checklist:
First year courses extremely easy boring: Check
Drinking, drinking games, hazing: Check
Pranks, petty crime and mischief: Check
Getting into fights at parties: Check
Fake IDs: Check
Smoking weed: Check
Eating magic mushrooms: Check
Ridiculously hot girls all over campus: Check
Shitty part time jobs, community service: Check
Going to strip clubs with group of friends: Check
Even the prostitution ring in the game rings partially true: I remember some of my friends taking me to a brothel and I sat out front with a gay guy because I refused to pay for sex.
Sports were a big part of campus life too, which you don't really see in this game since you're pitted against the jocks on campus. Not having a car and getting around as freshmen was difficult too.
Of course, I can't say that's how college life is today....
Most of these scenarios and memories lead to a DIK playthrough.
As for how I behave now, I think Bella's line at the Halloween party about looking at college situations differently as you age is spot on. Generally, I believe people have more empathy as they age and experience more hardships first hand or witnessing other peoples troubles, which tends to lead to more CHICK choices in the game.