I would get the Honda. the Mitsubishi tends to have alarm problems and other electronic problems. I have answered many questions about both cars in other Auto Repair sites. The mitsubishi has more problems than a Honda Prelude. I am not saying that the Honda don't have problems. But I hardly ever see them at the sites.
depends on which engine and options both cars have. at the end of the day though they are very similar and its up to you. Choose whichever one you like better.