So I applied one coat each of Leather CPR (right boot) and Leather Honey (left boot) and took photos during and after the application. As you can see, the Leather Honey definitely darkened the leather. It also took longer to soak in and didn't have as shiny a finish afterwards as the Leather CPR. However, I did feel like it conditioned a bit better, though I really liked both products. Probably the boots would benefit from a few more applications of conditioner, as you can still see a lot of scuffs and marks on them. I ended up doing a quick coat of Leather Honey on the right boot after these pix, as I wanted to even out the color a bit (and wear them!). Overall - the boots were lovely before, they're lovely after, but I think for very dry leather the Leather Honey will probably be my favorite, though the CPR is much easier/faster/cleaner to use for more usual jobs.
After pics:
http://s1113.photobucket.com/albums/k503/JulieInmon/Conditioner%20Test%20-%20Boots%20After/