More people would ride a commuter or light rail line than they would a bus, IMO. A bus has the stigma that it's for the poor and minorities, while light rail is the prefered method of transport for young professionals. The fact that two forms of mass transit are so different in who will ride them is strange but unfortunately true. That is why rail is a better investment, and BRT will never work like rail would.

And OKC has the population density to support rail...in certain areas. For example connecting OUHSC (huge employment center) to the Triangle/Deep Deuce (future high residential density) to Midtown (future medium residential density) to the CBD (huge employment center) to Bricktown (entertainment center) and to the Blvd. (entertainment/future retail center). You are connecting places in a fairly compact area that people want to go to whether it be their office, their loft/condo, a sporting event, restaurants and retail, and also hotels and the convention center for tourists. Tie it in with a commuter rail system that is pulling people from north and south parts of OKC, Edmond, Moore, and Norman off I-35 and getting them straight to the heart of downtown (Santa Fe Depot) and it will be used even more. And then eventually plan for it to connect to other "centers" in urban parts of central and northwest OKC i.e. OCU, Asian District, Paseo, Penn Square, Crown Heights, Belle Isle, and Nichols Hills. Fortunately all of those districts can be reached using Classen, where a rail trolley once ran...