Although the four areas were weighted equally, within each were different aspects that were weighted differently.

So within affordability, WalletHub looked at adjusted cost of living, which was given the heaviest weighting, in addition to tax-payer friendliness and annual costs of adult day Health care and in-home services.

Within the activities category, all aspects were weighted evenly, ranging from recreation and senior centers to golf courses, theaters and art galleries, bingo halls and even fishing facilities.

For quality of life, the heaviest weighting was given to weather, mild being the most favorable, while air and water quality were weighted least. The category also included share of population that was 65 and older, the labor market for elderly, city walkability, as well as crime rate.

Finally, health care weighted almost all areas evenly including numbers of physicians, nurses, health care facilities and top-rated geriatrics hospitals.

What were the top scorers in each category? 

• Affordability: Laredo, Texas

• Activities: San Francisco

• Quality of Life: Honolulu

• Health care: Sioux Falls, South Dakota

For the big picture, WalletHub combined these categories to find the top-rated U.S. cities of the 150 most populated in which to retire.

Those cities that scored highest in a particular category are noted with a Shout Out: BEST of the Best! Those that scored the lowest in a category among these 25 cities gets noted: WORST of the Best! Read on:

25. Colorado Springs (Population: 465,000)

• Affordability: 77

• Activities: 63

• Quality of Life: 8

• Health care: 56 

24.  Boise, Idaho (Population: 223,000)

• Affordability: 81

• Activities: 42

• Quality of Life: 27

• Health care: 39

23. Los Angeles (Population: 3,976,500)

• Affordability: 127

• Activities: 5

• Quality of Life: 17

• Health care: 32

22. Sioux Falls, South Dakota (Population: 174,500)

• Affordability: 51

• Activities: 126 – (WORST of the Best!)

• Quality of Life: 98

• Health care: 1 – (BEST of the Best!)

These two opposite Shout Outs make Sioux Falls a tough choice for retirees: The lack of activities may bore you into a deep depression but you'll have a great health care system to lift you out of your funk.

21. San Francisco (Population: 871,000)

• Affordability: 144 – (WORST of the Best!)

• Activities: 1 – (BEST of the Best!)

• Quality of Life: 36

• Health care: 7

If you retire to super pricey San Francisco you get to either pay rent and stare out the window of your expensive apartment OR live on the street and have money to pay for all the cool things around town.

20. Cincinnati (Population: 299,000)

• Affordability: 74

• Activities: 9

• Quality of Life: 124 — (WORST of the Best!)

• Health care: 77

Yeesh, WKRP in Cincinnati indeed. You remember the TV show, right? The WKRP (without the W) stands for what it sounds like.

19. Raleigh, North Carolina (Population: 459,000)

• Affordability: 61

• Activities: 48

• Quality of Life: 61

• Health care: 6

18. Port St. Lucie, Florida (Population: 185,000)

• Affordability: 26

• Activities: 80

• Quality of Life: 83

• Health care: 15

17. St. Petersburg, Florida (Population: 261,000)

• Affordability: 3

• Activities: 32

• Quality of Life: 66

• Health care: 92

16. Madison, Wisconsin (Population: 252,500)

• Affordability: 117

• Activities: 31

• Quality of Life: 11

• Health care: 3

15. Ft. Lauderdale, Florida (Population: 179,000)

• Affordability: 44

• Activities: 29

• Quality of Life: 65

• Health care: 34

14.  Minneapolis (Population: 413,500)

• Affordability: 124

• Activities: 19

• Quality of Life: 42

• Health care: 2

13. Cape Coral, Florida (Population: 180,000)

• Affordability: 21

• Activities: 68

• Quality of Life: 30

• Health care: 50

12. New Orleans (Population: 391,500)

• Affordability: 30

• Activities: 13

• Quality of Life: 109

• Health care: 93

11. Pittsburgh (Population: 303,500)

• Affordability: 76

• Activities: 20

• Quality of Life: 43

• Health care: 53

10. Las Vegas (Population: 633,000)

• Affordability: 32

• Activities: 17

• Quality of Life: 52

• Health care: 109 — (WORST of the Best!)

So basically, don't retire to Las Vegas if you're thinking of visiting a decent doctor in the next one to 30 years.

9. Austin, Texas (Population: 948,000)

• Affordability: 57

• Activities: 21

• Quality of Life: 54

• Health care: 48

8. Denver (Population: 693,000)

• Affordability: 103

• Activities: 18

• Quality of Life: 34

• Health care: 21

7. Honolulu (Population: 352,000)

• Affordability: 134

• Activities: 12

• Quality of Life: 1 — (BEST of the Best!)

• Health care: 9

The islands are expensive but you probably won't care because, hey, you're living in freaking Hawaii, bro! 

6. Salt Lake City (Population: 193,500)

• Affordability: 75

• Activities: 26

• Quality of Life: 92

• Health care: 12

5. Atlanta (Population: 472,500)

• Affordability: 58

• Activities: 8

• Quality of Life: 113

• Health care: 52

4. Scottsdale, Arizona (Population: 246,500)

• Affordability: 62

• Activities: 43

• Quality of Life: 5

• Health care: 10

3. Miami (Population: 453,500)

• Affordability: 36

• Activities: 4

• Quality of Life: 117

• Health care: 29

2. Tampa, Florida (Population: 377,000)

• Affordability: 7

• Activities: 10

• Quality of Life: 80

• Health care: 59

1. Orlando, Florida (Population: 277,000)

• Affordability: 8

• Activities: 14

• Quality of Life: 112

• Health care: 13