As a guy still in training I'm voting for Last Casino.
I liked the way the team was so inept on their first trip. It maps neatly onto my own fears ^^
I also found the prof plausible. Knowing all about EV+ and odds to a tee, he blows everything on a hopeless addiction to horses.
As to the Martingale at the end.... Well, reducing the number of bets reduces house edge. Maybe in context it was a reasonable solution.
If I weren't a wannabe counter I'd vote for 21. I'll see your Katherine Isabelle and raise you a Liza Lapira any day of the week ^^
A picture says a thousand words...