Creating 10 Choices

Another option besides simply a dialog window choice system, is to have a character selection kind of map (think 3-scenarios, or even the Narshe battle) and have the player be able to walk around with some generic sprite or what have you and choose a character/class, in which a dialog box would open letting the player know which class it is etc. and then if they want to choose it or not. That'd make it fun and practical. It would be a fair bit more complicated event-wise, but definitely doable.