Here is a list of Christmas-friendly and not so Christmas-friendly retailers. This list was obtained through Focus on the Family in regards to retailers catalogs.
"Christmas-friendly" retailers - prominent acknowledgment of "Christmas"
Pier 1 Imports
Linens 'n Things
The Home Depot
"Christmas-negligent" retailers - marginalized use of "Christmas"
Barnes & Noble
Dick's Sporting Goods
Bed, Bath & Beyond
Toys "R" Us
"Christmas-offensive" retailers - apparent abandonment of "Christmas"
If this is something that matters to you, you can help bring it to the retailers attention by signing a petition at http://www.focuspetitions.com/175/petition.asp?Ref_ID=1952.