GCH is basically a scaled down version of the WL at WDW. It has an entrance directly into California Adventure, but you do not want to actually use that entrance at rope drop because it will put you behind the rope drop crowd for the most popular rides. At rope drop, you would want to make the short walk to the front gate instead of using the resort gate. The rest of the time, the resort gate is nice. Being WDW vets, we prefer DLH because it is different than the WDW resorts and is very "Disney". It is a little farther than GCH, but also keeps you in the Disney bubble as the walk from the DLH is entirely through DTD. We enjoy the walk. By WDW standards it isn't far at all. It takes us 8 to 10 minutes-- if we aren't distracted by and stopping in places in DTD. The rooms at DLH are bigger and we love the Disney theming with the light up musical headboards. For an adult, it would be nice to have Trader Sams (assuming that you are a cocktail drinker). It is a really fun little place. You can always hop on the monorail to DL if you don't want to walk the whole way-- but the monorail lets you off in Tomorrowland-- and if there is any line at all for the monorail you can walk to DL and be there as fast if not faster. PP is cheaper, but it did not start off as a Disney hotel and it shows. To us, it is the least "Disney" of the 3, and is also just outside the bubble as you have to cross the street. The discounts at DLR are typically not as good as you can find at WDW. Even with a discount 4 nights at DLR usually costs us what it costs us to spend 7 nights at WDW in a deluxe with a discount. You find the discounts for DLR the same way as for WDW, you click where it says special offers on the website. Being WDW vets-- we prefer the Disney bubble and the Disney resort feel. If it is the closeness you are most interested in, and not the Disney bubble or the Disney resort experience, then you might rethink going off site because some of those hotels are very close to the front gates.