This is how the MLS playoffs should be. Home teams listed first.
#1 D.C. United – #2 New England
#3 Columbus – #4 New York, loser eliminated
#1 Seattle – #2 Los Angeles
#3 Salt Lake – #4 Dallas, loser eliminated
D.C. United-New England loser vs. Columbus-New York winner
Seattle-Los Angeles loser vs. Salt Lake-Dallas winner
D.C. United-New England winner vs. Round 2 winner
Seattle-Los Angeles winner vs. Round 2 winner
East winner vs. West winner (or vice versa)
It’s called the Page playoff system (or a slight variant thereof). Every seed gets a unique reward. The top two teams in each conference get a second chance if they lose their first game. The first-place team gets to host that game. The second-place team hosts the next game. The winner of their game hosts the semifinal. The third-place team hosts its first game.
Cool, isn’t it?
You could mix it up a bit if you like. Maybe the losers switch conferences so no team plays another one twice.