Derek Stevens has distinguished himself at The D as one casino owner who gets it. When he wants to learn what customers want, he doesn’t hire a consulting firm and wait for a report; he walks into his casino and asks them. There’s something to be said for gambling at a place where you can have a drink with the owner. Stevens loves running a casino, and it shows. 301 Fremont St., 702-388-2400, TheD.com.