On the final legal of our 16-day trip, we will be leaving Seattle on a Sunday morning, and our flight leaves from Portland Airport on Monday at 6 pm. En route, we'd like to see the highlights of Mt. Rainier and Mt. St. Helens.
At this point I'm confused about how much time to allot for each, and where I should be seeking lodging Sunday night as a result. My first plan was to stay Sunday night at Paradise Inn, so that we can have all day Sunday to enjoy exploring Mt. Rainier and doing some short hikes, then leave Monday morning to visit Mt. St. Helens and get back to PDX in time for our flight. Does this seem reasonable, or is this allotting too much time for Rainier since we're not planning on major hiking, and perhaps we should stay in Castle Rock to get an early start on Mt. St. Helens the following day, which would allow us to get back to Portland earlier on Monday to catch anything that we may have missed earlier in the trip?
If we stay in Mt. Rainier, is Paradise Inn the best option? And if Castle Rock (or someplace else) is better, which hotel would you recommend?