The AL West had the 3rd most combined wins out of all of the divisions in baseball in 2017. It also had the World Series Champions, the Houston Astros.
The Astros have had a quiet offseason though, and division rivals are trying to keep up. This week the Angels recently signed Shohei Ohtani and Mariners traded for Dee Gordon. Both teams were in the AL Wild Card race up until the last week of September, and both teams are making moves so far this offseason to change that.