Eliminating East and West for NBA Playoffs

Imagine if the NBA decided to completely eliminate "Eastern" and "Western" divisions and seed teams 1-16 based on their record, with head-to-head serving as tie-breakers. These would be the match-ups for the 2015 NBA playoffs along with my predictions for the winners of the series.

1st Round
1 Golden State Warriors (67-15) vs. 16 Boston Celtics (40-42): Golden State wins 4-0
2 Atlanta Hawks (60-22) vs. 15 Milwaukee Bucks (41-41): Atlanta wins 4-1
3 Houston Rockets (56-26) vs. 14 Oklahoma City Thunder (45-37): Houston wins 4-2
4 Los Angeles Clippers (56-26) vs. 13 New Orleans Pelicans (45-37): Los Angeles wins 4-2
5 Memphis Grizzlies (55-27) vs. 12 Washington Wizards (46-36): Washington wins 4-2
6 San Antonio Spurs (55-27) vs. 11 Toronto Raptors (49-33): San Antonio wins 4-1
7 Cleveland Cavaliers (53-29) vs. 10 Dallas Mavericks (50-32): Cleveland wins 4-1
8 Portland Trail Blazers (51-31) vs. 9 Chicago Bulls (50-32): Chicago wins 4-3

Quarterfinals
1 Golden State vs. 9 Chicago: Golden State wins 4-3
2 Atlanta vs. 7 Cleveland: Atlanta wins 4-2
3 Houston vs. 6 San Antonio: San Antonio wins 4-2
4 Los Angeles vs. 12 Washington: Washington wins 4-2

Semifinals
1 Golden State vs. 12 Washington: Golden State wins 4-2
2 Atlanta vs. 6 San Antonio: San Antonio wins 4-3

NBA Finals
1 Golden State vs. 6 San Antonio: San Antonio wins in 6.