The eternal GCH vs DLH debate!
Was Just there last week for 5+ daysand did the pool 4 different days. Wasn’t horribly crowded at all (although it was on the cooler side) we saw people from paradise pier but they weren’t over whelming the pool. On our spring trip when it was warmer the pool didn’t seem packed then either. Grab a Cabana if you can swing it!
Just gotta do what works best for you. DLH works best for us with little kids. We’ve stayed at both and with the kids we prefer DLH (cost is a minor issue for us). GCH does have better food options but DLH isn’t horrible. Most are likely referring to Goofys Kitchen which is more kid friendly but not as good food wise as story tellers. Tangora is pretty good, too strong of an Asian influence? I didn’t think so, you can always order the burger without the pineapple. We’ve got very picky eaters and have no issues at DLH with food. The room service menu has more “Traditional” options. The grab and go at coffee house isn’t bad either. We like DLH rooms better, as they’re more nostalgic and have more of a Disney feel. GCH rooms are nice, but they’re nice hotel nice.
They don’t really have that Disney touch. The pool area is bigger and better at DLH than GCH. GCH pools are smaller. Can’t beat the proximity to the parks at CGH though! But it’s not like DLH is a 30 min walk uphill both ways

It’s 10 mins to the front gate, or hop on the monorail. Or, exit out frontier tower, walk down paradise cross the street and enter DCA through the paradise pier gate in less than 10 mins (or keep going and enter through GCH).