Its all in where your room is located. Our first stay there we were down a long hallway (and I didn't know about any secret stairway lol) and it was a long walk just to get out of the building!
To me, the location of the DLH is not a negative in relation to the location of the GCH. For one thing, you have the monorail. Yes its a bit further down DTD, however, for us, this is not a big deal.
We just got back from four great nights at the DLH, we were in the Frontier Tower which is the "farthest" which to us was so not a big deal! The walk was easy, we usually took the monorail back at night but walked to and from in the mornings and for our midday breaks.
We love both hotels but for us, the DLh wins because we enjoy the Disney and tropical theming, the grounds and the pool. I do also love the GCH pools and think White Water Snacks is a huge selling point to GCH as well as the balconies. But its location over the DLH for us is not a factor.
I will add we are used to staying at WDW, generally in the moderates which are very spread out, so the walking difference between DLh and GCH is nothing. And if you end your night in
Disneyland, being able to take the monorail is a huge selling point. Friday night my dd and I rode the train from New Orleans Square to Toon Town, then the short walk over to the monorail station. Piece of cake. On the other hand we generally ended our morning/afternoon at DCA and headed back to our hotel to swim and relax. That scenario would have been much easier if we had been staying at GCH. But getting to the DLH was still no biggie, esp since we cut through the GCH.