Thoughts and advice on difference between a couple of brands of red miso?

I had been using this brand of red miso for the last couple of years because that's what was available at my local Kroger owner store. But while making an Amazon purchase I bought some of this popular brand. I use their white miso as well.

There is a major color difference, which I know is caused by many factors, including how long it was fermented. The Hemisfares brand states it was aged for 3 years. The Hikari brand doesn't state it anywhere and an amazon reviewer said they received no reply when they wrote and asked the company.

I haven't done a taste test yet but was thinking toast with miso butter might make a good taste test.

Any thoughts or insight is welcome, especially if you have experience with both brands. Thanks!