This is the first time I've ever heard anything about "clunky" shifting with an Escape. I would think that clunking could be attributed to some type of an adjustment problem. I would suggest that you retry another Giant Escape, in order to verify your initial shifting impression of the Escape.

Also, let's not omit the Jamis Coda Comp. I'm certain that you should be able to test ride a Coda Comp, before pulling the trigger. The Codas are all great Performance hybrids that will practically last a lifetime!