Grrr, sorry to hear about the latest development. I hope things better quickly so you can take your trip!!
I am a little late jumping in here, but I want to give you a different perspective from my Alaskan Cruise I took 2 years ago.
The state is absolutely magnificent and breathtaking - no doubt about it. I found that the air quality, perfumes, aftershave, damp cold weather really was exhausting and sufficating though.
In Ketchican I was unable to breath because the air was so humid and the tour buses exhaust hung on the ground. In Juno I took a smaller boat to shore and could hardly breath because of the exhaust stayed in the boat. The boat I was on was huge 3,000 people and that was way too many. In the evenings when everyone dressed up for dinner/shows - I felt suffocated by the perfumes/aftershaves. Last but not least they told the passengers to hot cover their mouth when they coughed because it could pass the germs on throughout the boat - Yikes, I had one lung, compromised immune system and people hacking all over the back of my head. The elevators were always tide up so huffing in on the stairs was a treat too. Wait in line, wait in line, wait in line....Anways I am sure you get the picture.
If I didn't have breathing issues I am sure I would have enjoyed the trip much better. We took the cruise in the 3rd week of August.
My vote is to southern california. The area is beautiful, the coast stunning and the weather is mild without alot of humidity.