We are poorly suited to choose a specific bike for the reason that we aren't you. But, since you asked, if I were in your situation...

I would sell the first bike on gut feel. Don't worry about how much money I get for it, sell the one I don't want. This could be because I don't ride it as much, and there is relatively little to distinguish it from other bike(s) in my posession If I sell my favorite because I would get the most money, then I will never get enough, even if I get more than fair market price.

I would then sit with a list of the remaining bikes (or the bikes in front of me), and determine what I use each for. I would figure out which one could be eliminated by increasing the usage of the others without diminishing my experience very much.

Now that this is done, I would also sell the second one as a way to continue giving the wife my priority. This would free up space, not diminish my ability to enjoy cycling and make the wife very happy.

Oh, and the last step... Spend my money and effort I would have spent on maintaining another bike in my stable by splitting it between the wife and the remaining bikes.

The inequality is simple... 5 bikes and a tolerant wife < a select 4 bikes and a happy wife.

Quality, not quantity.

Of course, I won't have a quality bike myself until at least next year.