Daniel, we are all blessed to have folks like you that dedicate their lives to protecting our freedoms, Thank you!
As far as which place to settle it sounds like WA is a could choice looking at all the pros & cons. Not that Iowa or a couple other mid-west states don't have fantastic hunting and genetics but these areas are more at risk for CWD, hope in never happens but it's closing in in some areas in states like Iowa & Illinois. Just something to consider along with the ticks and dang chiggers. Blue tongue is also prevalent in these areas, not sure if that's an issue in WA or not.
I must admit I never hunted Iowa even though I've dreamed about it for 13 years now & have enough preference points to do so, just not the funds right now. I did hunt Illinois for 10 years & was blessed to harvest one buck over 200" but what I noticed over that period of time was the quantity & size of the buck slowly declined. Most likely due to the fame of the mid-west hunting being published everywhere bringing added hunting pressure along with blue tongue and other diseases that have affected the larger deer. A guy would be lucky to get a buck over 140" in Illinois now compared to seeing 160" buck on a regular basis 13 years ago.
Just some food for thought even though I would love to move to Iowa but Washington state sounds more like what would make me happy long term. No pressure, plenty of game & other outdoor opportunities you can't find just anywhere.
Good luck & thanks again!