Planning my 5K service here in Denver area. Which dealer has the best service department?

Any opinions, Coloradans? I live very close to McDonald Audi but I've heard their service department is not that great. What about Prestige Motors?

I have dealt with McDonald VW service for many years but after recent dealings I'm driving across town to Prestige where I bought my A4.
Mike Sorenson is the Service Manager but I was introduced also to Amber Churches who is a service consultant for them. The people were courteous, personable and professional.

The last time I used McDonald for my VW I got alot of reassuring BS upfront and then they did did the usual exploratory try this then that approach. My neighbor has a TT and had used McDonald Audi service but felt as though he got very similar treatment.

I have not used the service dept from Prestige as yet but I plan on having all the scheduled service done through them.

One thing I did notice was that prestige charges the same for accessories as the AOA website where McDonald was asking for considerably more for the same parts.

I have also read good comments about Avalon Motorsports but I don't know if they honor the Audi care program. They do chip tuning and the like.

Cheers