4runnerguy makes this easier for me. Have done all but 3 of the NP's and all but 5 of the NM's he mentions. And some of the ones in HI johndeere4955 mentions. And many of these several times and will be again this summer and next year in the started planning stage already.
Interesting the addition of the ones in Canada. We love BC and that is in the plans for 2016 along with Grand Teton, Yellowstone and Glacier again.
Also he mentions ones in BC some people overlook and should not (and in there again for 2016) - people get to Waterton, Banff and Jasper but you should take time for Yoho, Glacier (yes, they have a Glacier as well), Revelstoke and Kootenay.