Australian Perspective:
1. Politics (Dick Smith combined with a weak, ignorant, technically handicapped federal government)
2. Management
3. Management
4. Privatisation
5. Short Staffing
6. Roster Stability
7. Non-sensical changes to procedure - that get reversed a month later.
8. Shift Work
9. Insufficient Leave
10. management
But.... working heavy traffic, dealing with foreign or unfamiliar or low time pilots - always rewarding and insignificant in stress terms.
Trying to that whilst subject to items 1-10...... grrrrrr.