Some things to compare.

Exterior

* Curb appeal (Does home make a good first impression?)
* Front yard — size
* Back yard — size
* Condition of lawn, trees and landscaping
* Condition and adequacy of drives and walkways
* Curbing and drainage
* Front yard ornamentation
* Back yard privacy
* Roof — condition of shingles or other covering
* Roof — adequate ventilation
* Appeal of front entrance
* Lighting and safety
* Quality and condition of exterior siding
* Car storage — garage, carport, detached/attached
* Exterior utility buildings and storage
* Water - pools, baths, ponds
* Garden

Interior

* Floor plan — ease of movement
* Floor plan — privacy
* Number of bedrooms
* Number and location of baths
* Specialty rooms — dining, living, study, etc.
* Room size
* Natural light and ventilation
* Signs of water leakage
* Wall covering and paint
* Floor covering and finish
* Quality of doors, windows and hardware
* Built-ins — bookcases, cabinets, etc.

Energy

* Type of heating system
* Type of air conditioning
* Adequacy of electric service
* Electric outlets — number and location
* Gas service
* Insulation and air tightness
* Ceiling fans, whole house fan
* Energy rating on windows, doors
* Obvious drafts

Kitchen and Baths

* Size of kitchen
* Size of master bath
* Age and condition of kitchen appliances
* What appliances stay with house
* Kitchen cabinets and pantry — amount, convenience, appearance
* Kitchen layout
* Counter tops — quality and condition
* Bath finish — materials, color
* Bath enclosures
* Specialty bath fixtures — whirlpools, etc.
* Lighting and ventilation