"Best" may be dependent on usage, obviously Nokia thought the current settings as best (and they may be for general usage - i.e. a balance between max number of open apps and speed of one single app). I for example tend to have many apps idle, most people close their apps when they're done with them.

I believe we should fix the obvious bug (lockup of system up so much that the watchdog kicks in during heavy IO) and leave other settings to the user to tweak.

For the record I have experienced reboot even while not-so-heavy IO, synchronizing over internet with unison/rsync