Object datasource or code-behind: which is better?

I know that it’s a subject that can raise a lot of debate, but I’d like to know what people think the various pros and cons of using Object Datasources are. I’m doing a project right now with another programmer who’s experience and comfort level are all rooted in classic ASP, and I’m unsure of which way is going to
a) get the job done quickly
b) get the job done with a minimum of fuss