http://www.starwoodhotels.com/westin/property/overview/index.html?propertyID=1012
You enter on the street level and the first landmark you hit is Starbucks
http://www.sheratondenverdowntown.com/
And here you have Peets coffee at your fingertips.
For the Westin you have the Tabor Center next door.
http://www.williegs.com/denver/index.asp
For the folks staying at the Sheraton there is the Pavilions
http://www.denverpavilions.com/
Doesn’t matter what hotel you are staying at, you enjoy all the shops, restaurants and entertainment along the 16th Street Mall.
http://www.denver.com/16th-street-mall/
http://www.taborcenter.com
http://www.paradisebakery.com
http://www.williegs.com/denver/index.asp