For years I thought the Meade Research Grade mount was one of the best mounts out there.
Then I was introduced to the Losmandy G11. While the G11 is not considered a classic mount yet, they do pack some nice classic scopes.
The mount that I now have in my observatory; along with the G11, is a true classic.
The Astro Physics 1200QMD. Mine is a ~1993 model. It's pretty. It's really smooth. And it's a real joy to just sit back at admire.
I'll be picking up another classic AP mount in a couple of months; the 1200DA. This is the model before the QMD. It was sent to AP for a complete tune up and refinish. It's really pretty and will look quite nice sitting in there with it's "younger" brother.
I do still have a Meade RG mount with the 880 RG tube assembly. That mount has its place in telescope history and it's nice in its own way.
Here is the 1200 QMD for those that hasn't seen it and my 1995 Meade 6" ED/APO.