CD player choice: Linn Ikemi, ArcamCD73, Adcom GCD- 575, or Linn Karik

I have all 4, apparently in perfect condition.

I'm wondering what will get me the most bang for the buck. I'll probably resell 3 and keep one. Is the listening difference as large as the price difference? 

I kind of lean toward keeping one of the Linns so it will match my other Linn equipment. Is the Ikemi very different from the Karik? 

I haven't been listening to my CDs much, so it may make more sense to use the $ otherwise.

Thanks for your answers. I'm new to high end audio and don't want to later regret selling something.