Preferred Map Type

[dunderwood]

Going through the Ogre documentation, I see that the .scene format is often mentioned as the preferred type of map to use. I am currently going this route with my application, and plan to add support for other maps in any case. However, I have also seen that the bsp format is preferred for indoor areas. Are there any major differences in performance between these two formats in different scenarios, and are there other formats that I should be looking at?