Let's break them down one by one, starting with the Mariners.
Mike Carp might be a bust as he hasn't lived up to expectations yet. After seven years, it's clear Franklin Gutierrez is average at best. Ichiro Suzuki's age is catching up to him as reflected in his 2011 stats.
The Angels' three are similar.
Vernon Wells was terrible in 2011. Entering his 14th season, Wells has been on a downhill slide for a few years. It looks like the Toronto Blue Jays knew what they were doing unloading Wells.
In Peter Bourjos' first full season, he hit .271, 12 HR and 43 RBI. He stole 22 bases, struck out 124 times while walking 32 times. Respectable numbers, but there's better in Oakland.
In the last two seasons, Torii Hunter has shown visible signs of slowing. Rightfully so as he's been in the MLB 15 years. He's already moved from center to right field. His batting average continues to drop as does his stolen bases. His speed and defense used to be the biggest factors in putting fear into opponents.
For the Rangers, Josh Hamilton is a beast. His power is obviously his best attribute. Nelson Cruz adds more power into the lineup with a touch of speed. The third spot is where the Rangers lack. David Murphy, Chris Gentry and Julio Borbon are average options who each hit about .270 when given intermittent chances.
Now for the A's.
Coco Crisp has immense speed as proven by his 49 stolen bases in 2011. He's arguably the fastest of any outfielder in the AL West right now. He might hit for average less than most but he more than makes up for it in every other aspect of the game.
Yoenis Cespedes is a 26-year-old phenom who was signed to a $36 million contract without ever having set foot in Major League Baseball. He looks to be a five-tool player with the speed of Torii Hunter in his prime, the power of Josh Hamilton and the defense of Ichiro Suzuki.
If the third spot is Josh Reddick's, Oakland has a big league ready 25-year-old with speed, power and contact. He's good enough the A's accepted parting ways with closer Andrew Bailey in the offseason.
It's a dangerous combination of veterans with plenty left in the tank and bright youngsters entering their premier years.