All three manufacturers made great coaches during this time frame. You should also include Country Coach, Travel Supreme, and Foretravel.
The Newmar folks can explain the integrated electronics E Plex issues to watch out for.
I would avoid the Freightliner rear radiator chassis coaches.
Watch for delaminated exterior panels and heat checked exterior paint in the dark colors.
Get the highest model, newest year (up to 2009), and best maintained coach you can find and afford. I set the cutoff year at 2009 because most chassis are built the year prior to the coach many used stockpiled engines.
97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV