Given the data below, rank the top 5 franchises.

Since NBA-ABA merger (season ending w/ 1977 playoffs)

POSTSEASON

NBA Championships:
Lakers 10
Bulls 6
Spurs 5
Celts 4
Pistons & Heat 3
Rockets 2
5 others with 1
18 with 0

Conference Championships:
Lakers 16
Celts 7
Bulls & Spurs 6
Pistons & Heat & Sixers 5
Rockets & Sonics/Thunder 4
Blazers 3
Bullets & Jazz & Mavs & Magic & Nets 2
3 others with 1
11 with 0

Playoff Win %
.606 Lakers (277-180)
.587 Bulls (159-112)
.568 Pistons (146-111)
.566 Heat (116-89)
.561 Spurs (201-157)
.554 Celts (159-112)
.522 Sixers (133-122)
.515 Sonics/Thunder (139-131)
.510 Pacers (106-102)
All other franchises < .500

REGULAR SEASON

Win %
.645 Lakers (1978-1090)
.614 Spurs (1884-1184)
.576 Suns (1766-1302)
.563 Blazers (1726-1342)
.560 Sonics/Thunder (1717-1351)
.559 Celts (1715-1352)
.546 Jazz (1676-1392)
.540 Rockets (1656-1412)
.523 Bulls (1605-1463)
.521 Heat (1085-999)
.516 Pistons (1583-1485)
.507 Mavs (1390-1350)
.500 Magic (1002-1000)
.500 Hawks (1535-1533)
All other franchises < .500

Division Titles
20 Spurs
19 Lakers
14 Celts
10 Heat & Sonics/Thunder
9 Pistons
8 Bucks & Bulls & Jazz
7 Nuggets
6 Magic & Pacers & Suns
5 Knicks
4 Blazers & Nets & Rockets
3 Hawks & Kings & Mavs
2 Clips & Cavs & Raptors
1 Bullets & Hornets/Pelicans & T’wolves
0 Bobcats & Grizz & Warriors

Conference best record
17 Lakers
8 Celts & Spurs
7 Bulls
6 Pistons
5 Sixers
4 Pacers & Sonics/Thunder
3 Suns
2 Blazers & Cavs & Heat & Jazz
1 Bullets & Mavs & Magic & T’wolves
0 – the other 12 franchises

Missed the playoffs
3 Lakers
4 Spurs
8 Blazers & *Heat (Heat 26 seasons in NBA)
11 Suns & *Magic (Magic 25 seasons)
12 Celts & Rockets
13 Bulls & Hawks & Jazz & Sonics/Thunder
14 Nuggets & Sixers
15 Mavs (Mavs 34 seasons in NBA)
16 Bucks & Pacers & Pistons
17 Knicks

All other franchises have missed playoffs > 50% of time

My ranking
(based on giving +10 for each NBA title, +5 for each Conf title, -1 for each time missing playoffs):
1 Lakers (in a blowout)
2 Bulls (almost in a dead heat w/ Spurs)
3 Spurs (regular season consistency nearly puts them 2)
4 Celtics
5 Heat (Pistons barely don't make it due to 16 missed playoffs)

Take it to the Bill Simmons Legacy board.

I need to update my playoffs spreadsheet.

1. Lakers by far
2,3,4. Spurs, Celtics, Bulls with the Spurs pulling ahead this year for 2
5,6. Pistons, Heat
7,8,9. 76ers, Thunder, Rockets then a big dropoff.

Only thing to note here is that the Spurs won their 5th NBA title by blowing out the Heat 4-1.