I'd be interested in seeing you playing a Devil's advocate to your own position and try your best to counter each of the arguments.
Fair enough :)
Counterarguments:
The rate of appearance of new suffering intelligent agents may be higher than the rate of disappearance of suffering due to optimization efforts.
A significant number of evolved intelligent agents may have directly opposing values.
The power of general intelligence may be greatly exaggerated.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.