There is no one answer to this question, but here's an order that should work well:
| audiofile |
| esound |
| glib |
| libxml |
| ORBit |
| GTK+ |
| imlib |
| gnome-libs |
| libgtop |
| libghttp |
| gnome-core |
| mc (gmc, mc, mcserv) |
| control-center (gnomecc) |
| libglade |
| gnome-print |
| And then anything else |