That's what I did until I joined this thread. When I took a photo of my line up, I realized I have soaps and creams bought more than a year ago. I used them a few times then, loved the performance and so decided to 'save' the better ones for later. I still have a few mediocre creams but have decided not to go back to my old habits of finishing those first.I have a couple that I'm not all that excited about, and a few that I am. My inclination is to get through the ones I'm least excited about first to get them out of the way.
My suggestion-pick one you're excited about and go for it. As for over analyzing, I'm only 3 shaves into my Razorock Lavender and am already trying to decide whether to use MWF or Valobra next.