If you are planning to drive to Disney anyway, try priceline and get a nicer place that may be further since distance won't matter, but you may get a better price.
From those two, the time it will take to get in the car drive a block and pull into the parking lot, is the same to get 1/2 to 2/3 of the way to the gates. I consider both to be far walking distance.
Maybe you could get a better rate at the Super 8 on Katella or Anahiem Plaza inn.