We found the Holiday Inn Express after completing our trip on the Natchez Trace. Ironically Natchez was the least dog friendly hotel city on our Southern tour until I called the Holiday Inn Express.
They had a reasonable pet policy and only charged one pet fee for our two dogs. The hotel WiFi was excellent as was the morning continental breakfast. Being a new hotel the rooms were in excellent condition. Finally the staff was all very nice.
The only cons and these are minor were:
1) only one elevator which could be slow and is problematic with large amounts of people and dogs.
2) the lobby is always playing music making my 0600 conference call somewhat difficult.
3) nothing walkable for food.