This is the current chart.
Long haul = flights over 2000 miles. Charlotte and Phoenix are NOT 2000 miles apart, but Philadelphia and Phoenix are over 2000 miles apart.
Economy
Short haul - 20 TPs
Long haul - 70 TPs
Note that the lower level of tier points for inflexible/restricted fares does NOT currently appear on US Airways. So if the US fare is similar to AA, it would imply an advantage to fly US since you would earn more TPs in discounted Economy / Coach.
Business
Business on US is offered only on US to Europe flights and is 140 TPs. Currently the online calculator is incorrectly showing the TPs to be 70 TPs per leg from UK/Ireland to USA, but in reality full points are posted,
see this confirmation.
First
First is offered to almost all US Airways destinations in the Americas, including to the Carribbean and Bermuda, whereas AA offers business class to these destinations.
Short haul - 60 TPs
Long haul - 210 TPs
Examples:
BOS-PHL - First: 60 TPs
BOS-PHL - Economy: 20 TPs
PHX-HNL - First 210 TPs
PHX-HNL - Economy: 70 TPs