Perfect OO Language

If 427 was to describe the perfect OO Language, what would it be like ?

Please add design decisions, with a reason, and feel free to add a reason for or against a different (or the opposite) way.

As was said in class today, maybe there is not one perfect language, only ones that are perfect in particular situation. But i guess we can still put together some over things what will be true for all or most situations. LukeRobinson

I've been working on something similar to this (Language Spectrum), regarding OO language design choices -- Josh Oosterman