Comparing apples with oranges here. The AC is in the top tier of Class A's, the other is in the middle of the middle tier. I've talked to GS owners that were pleased, and others (as posted in this thread), not so pleased.
All things being equal on maintenance and overall condition, and if the layout of the interior meets your needs - I would go with the AC.
If you don't feel comfortable doing the inspection yourself, hire a professional. Get the engines checked and oil analysis, etc. etc.
Good luck on your choice,
Roo II is our 04 Country Coach Allure 40'
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