My son has asked for help on a trip to Stockholm. I can't do much about the airlines, but for a place to stay, I checked out my Choice spreadsheet.
I came up with the Clarion Stockholm.
Tripadvisor has some very nice reviews of the place, and the best part is the award rate has been reduced to 10,000 points/night!
This starting to compare favorably with the Lisbon Clarion.