Another article on state-by-state tax differences; this time from Morningstar.
The conclusion:
Best States for Keeping Salary
Wyoming
Alaska
New Hampshire
Nevada
Tennessee
Washington
Florida
South Dakota
Texas
Alabama
Worst States for Taxing Salary
Rhode Island
Vermont
California
District of Columbia
Maine
Oregon
New York
Idaho
North Carolina
Nebraska
Best States for Retirement
Hawaii
Wyoming
Delaware
Colorado
Arizona
Alabama
Nevada
Louisiana
Alaska
Washington
Worst States for Retirement
Wisconsin
Nebraska
Connecticut
Kansas
Rhode Island
New Jersey
Illinois
New York
Texas
Maine
Best States for Overall Wealth Friendliness
Wyoming
Nevada
Tennessee
Alabama
Alaska
Colorado
Washington
Louisiana
Delaware
Arizona
Worst States for Overall Wealth Friendliness
Rhode Island
Wisconsin
New York
Vermont
Nebraska
New Jersey
Maine
Idaho
Ohio
Oregon
For the same topic, you may also be interested in this Kiplinger's Tax Map.