Bryce is easy to learn from and not too expensive. like I said, you can even model with it and do landscapes, it may not be a top of the line program but it does it's job well and for me, I love the easy interface. I learned a lot just by using this program. Then I moved on to Poser. I still would recommend Bryce for landscape scenes and Poser for 3D artwork and Max for modelling. Bryce, Poser & Max can export in object format and import. If exporting & importing different file extensions is what you need then these programs are the best for that. I'm not sure how the other import and export for file extensions.