I'm to the point, or close enough, that I need to replace the tires on my C-Max. I've had to replace one of my tires already, about a year ago, due to road damage -- so I have one Energy Saver that is still relatively new (one year old), which means that I'd only need to replace 3 tires if I stay with the Energy Saver.
I typically buy tires from Costco, I've been extremely happy with their service, so plan on buying from them again -- with the issue that it limits the selection (since they largely only carry Goodrich, Bridgestone, and Michelin tires). So I'm basically deciding between buying three of the Energy Savers or a full set of Bridgestone Ecopia EP422 Plus -- and with the current sale at Costco, the 4 Ecopias would be about $30-40 cheaper than buying the 3 Michelin Energy Savers. I considered buying 4 Energy Savers, when they were on sale with free installation (roughly $130 off) but it was still almost a full $100 more than buying 3 tires.
I'm torn, largely because I'm mostly happy with the Energy Savers; my one complaint would be the noise. Obviously, replacing the Energy Savers should make the car quieter, though from what I've read, after 20,000 miles the noise will start coming back (and I have one tire that will be at 20,000 much sooner than the other 3); whereas the Ecopias may stay quieter longer, from what Plus 3 Golfer has claimed. OTOH, while there isn't a huge amount of comparison data (the Ecopia E422 hasn't had many comparisons done with the Energy Savers, any comparisons I can find were done with the older Ecopia E100).
So I'm torn; do I stick with the factory tires and just buy the 3 replacements? Or would I be better saving a bit, having all 4 tires new, and buying the Ecopias. Not sure there is a "wrong" answer here, reviews are similar between the two (maybe a bit better, a many more reviews, for the Energy Savers) but curious what others here would recommend?