You can try tripadvisor.com for reviews of all the mentioned hotels. That's what we did.
I've been researching suite hotels for our next trip, since we are a party of six after our two-year-old turns three.
I'm not paying $550 a night for a suite at the DLH!
La Quinta Suites I would stay away from, if it is the one on Clementine St. It used to be our favorite hotel when it was Crystal Suites,
way back when, but reviews have gone downhill since they were Best Western, and worse since La Quinta took over.
For our trip, I have narrowed our search to the Residence Inn on Harbor Blvd, (not the Residence Inn Maingate,) and the Doubletree Suites, also on Harbor. RI has a full kitchen and hot breakfast buffet, as well as a nightly weeknight reception, and is about $50 more per night than the Doubletree. Doubletree, however, has an onsite lounge and restaurant and coffee house, and we love Doubletree beds! Both have shuttle access, and both received great reviews on tripadvisor. We have reservations at both right now, but I'm cancelling the RI, since a) we are eating breakfast at the DLR three of the four days, b) having a lounge to grab a drink for poolside or relaxing after a day in the parks is very nice, and c) I require
good coffee to function--in room coffeemakers don't cut it. I'm hoping for a better rate at the last minute, but it's for July, so I'm not holding my breath.