Celtics have the advantage over the Pistons 4-3. Celtics beat the Pistons in 1985, 1987, 2002, and 2008. Detroit beat Boston in 1988, 1989, and 1991.
The Celticsâ76ers rivalry is a rivalry between the Boston Celtics and Philadelphia 76ers . The two teams have the most meetings in the NBA Playoffs , playing each other in 19 series with the Celtics winning 12 of them. [1
See, you can't get away with this nonsense. You said it yourself:
"The Lakers faced Philly, Boston, and Detroit in the Finals, in the 80s, ..."
Now when getting crushed, you want to use all-time records?
I am not surprised the Celtics have winning records against most teams in the playoffs. Why not? when they weren't good enough, they deliberately missed the playoffs to preserve the winning records. Just like they deliberately missed the finals to preserve a 9-3 record against the Lakers.