Atlantic Southeast Airlines (Delta Connection).
On-time performance: 63.3% (worst)
Baggage mishandling: 16.9 per 1,000 passengers (worst)
Cancellations: 4.4% (second worst)
The other "winners":
2. Comair (a division of Delta Air Lines)
3. American Eagle (a division of American Airlines)
4. ExpressJet Airlines
5. US Airways
6. American Airlines
7. Mesa Airlines
8. Delta Air Lines
9. United Airlines
10. Alaska Airlines
Not on the list (I guess "good" airlines in terms of on time performance, baggage handling, and cancellations):
Southwest
Northwest
JetBlue
Continental
Midwest
Aloha
Hawaiian
Skywest
Frontier
Chief Captain
Captain