I really have no idea what you do to have so many issues with so many things.

I use safari pretty much all day every day and I really cannot remember the last time I saw it crash.

Same for mail, its constantly there in the background ready for action.

My machine is hardly ever shutdown and is just put to sleep by closing the lid.

The only thing that irks me with mountain lion is the god awful built in versioning on files - its modus operandi is confusing and random.

Not that this helps in any way.