I have a time share (actually I wish I didn't) and I have a choice we could spend a week at Whitefish and visit Glacier national Park and surrounds (we will have a rental car) or we can possibly get a week in West Yellowstone as an alternative. Can't do both. If we stay at one we may do a day or two at the other anyway. I know this is very subjective but not knowing much about either place, which of the two, IYHO would be the best to spend a week.? Both accommodations look the same standard. The time of the year will be late May. We visited Yosemite, GC, Zion and Shenandoah on a trip to the US in 2011 and found them "spectacular" particularly Yosemite. Thus, we want to see more US National Parks on our next trip. Any further tips appreciated.