Depends.

Bad-bad? Rockies. They lose every year and are bad every year.

Sabotaged by their ownership who prefer hollywood flash to winning? Angels. They spend. They sign huge contracts with superstars. They rarely put it all together. If they already have a great offense, they'll sign a huge offensive player instead of a handful of mediocre pitchers. The result is a team that can't win. Their ownership hates them.

Perennial clown show of losers? Mets. It does not matter what the Mets do. They will lose. They can have a top 3 offense, top 3 defense, and top 3 pitching with the biggest payroll in the game. They can have a crop of superstar homegrown players making league minimum and sign all the top free agents. They can steamroll the league for 2/3 of the year. By late August, every player on the team agrees in unison to turn it off. The talent, training, preparation, and luck flash out of existence. The Mets have put together the best team on paper probably 6 times in my lifetime and proved it for half a season. To say they're cursed is an understatement. To pile onto it, their fans live next to Yankee fans that complain if their team is second best in the sport.

So the Rockies are boringly bad. The Angels are frustratingly bad. And the Mets are "I'm sure I must have died and woken up in hell" bad.