That has occurred 135 times since the 1926-27 season (when the NHL took sole proprietorship of the Stanley Cup) up through the 2009-10 season.
35 x Toronto Maple Leafs
26 x Montreal Canadiens
17 x Calgary Flames
15 x Vancouver Canucks
12 x Edmonton Oilers
10 x Winnipeg Jets (1)
7 x Ottawa Senators (2)
6 x Quebec Nordiques
6 x Montreal Maroons
1 x Ottawa Senators (1)
All of the NHL teams have been to the playoffs at least once.
Most teams get to make the playoffs at 8&8 if that is your question?
12 teams make it into the mls playoffs
As of the start of the 2007 playoffs, no. The most 'sweeps' in the first round of the playoffs has been two and that has happened many times. But never have three teams swept in the first round of the MLB playoffs much less all four teams.
top 8 teams of each conference get into the playoffs. how many points that is depends on the standings of the teams