Big Seattle Thread here.

I've stayed at most of them and choose different ones for different occasions:

- Hyatt Regency: This is a pretty middle-of-the-road favorite. Modern, clean good rooms, good restaurant downstairs. If you're a Globalist, a good chance of a free last minute upgrade to at least a larger room if not a suite.
- Olive 8: Across the Street from the HR above -- and they share the same management. Globalist breakfast is at Andare at the HR above. Good if you need a Hyatt brand explorer badge. The Luxury King suite TSU upgrade is large and nice, and surprisingly readily available a lot of the time. All floors are low, so street noise will be a thing, and you'll be walking across the street for breakfast as a Globalist.
- Grand Hyatt: This is actually my favorite for traveling with young kids. The GH is great for grabbing snacks and in-n-out breakfast. If you're traveling solo or with a party that's sit-down-breakfast-friendly then the HR is a better product, but if your crew is more "volatile", then having a Club for grab and go is handy. Also a halfway-decent sushi restaurant next door for some quick calories.

All the above options are more centrally downtown, and good if your itinerary has you jumping into a car and having to leave a city. Also very convenient to public transport and the commercial shopping district if that's on your docket.

- Hyatt House: If you're doing north-end-of-town touristy things. Basically right by the Space Needle. If you're not a Globalist, this is probably a reasonable choice, as you're not missing out on any major Globie free perks, so paying general fair market rates. Because this is largely a tourist hotel, prices vary dramatically btw the weekdays and weekend.
- Hyatt Place: Pretty close to the HH above, but not as central. Consider this as an alternative to the HH at a slightly cheaper price point.

- Thompson: This is the odd man out. Many people here on FT don't like it because the place is a bit run down. But a run-down Thompson is still better than a freshly-built HP in my book. I rather enjoy this property when traveling solo or as a couple for the weekend, where the goal is primarily entertainment and when there aren't commitments to be anywhere else at a certain time. It's right by Pike Place market, so good for exploring that as well as all the other nightlife spots on the water's edge. But because it's further afield from downtown, driving in and out requires a bit more effort, and if you're using public transport will usually requires about a 10-minute walk to get to a good line (basically to the HR/O8/GH area above -- which are the primary competing alternatives if you're considering the Thompson)