Which do you prefer? Personally, I like the Hylian Shield. There doesn't seem to be much benefit to the use of the Mirror Shield unless it's needed for a puzzle or the Spirit Temple boss since it just destroys enemy projectiles instead of reflecting them like the Hylian Shield. Unless it has some other use that I'm not aware of?
I usually leave mirror shield equipped simply because like-likes can't eat it. I don't encounter them very often, but neither do I encounter projectiles that need to be deflected so I just leave it on the option that is least likely to require me to switch my shield later.
It is bigger and can't be eaten by Like-Likes. Also, once you get the Hookshot/Longshot or the bow, you really don't need to bounce projectiles back, anyway. Plus, it looks cooler and goes great with the Goron tunic and golden gauntlets as was stated earlier. --- Lock 'n' Load!
IMO silver gauntlets looks FAR more badass then golden. and IMO Hylian >>> mirror shield im a fan of link with his basic stuff on. either way i prefer the design of the Hylian shield to anyways. although i think the heros shield in MM looked the best :p