Your complaints do sound somewhat trivial:
- yes, you have to use gconf to edit button placement but you can also download one of the dozen tweak apps in existence. Interestingly, none of the users I support has asked me for a way to tweak the buttons (I guess Ubuntu 10.04 will change that).
- no there's no GUI for screensaver preferences. Still, who in their right mind uses screensavers nowadays? That's a Win98 relic. (Or do you really enjoying having your laptop/desktop fans ramp up and power consumption jump by 200% when you are not
using your computer? Doesn't really make sense.)
- what icons can't you sort?