..and even vs The Shadow: Do The Shadow apply to critical heal? :)

One of the things I hate most about playing ESO at PS4 is the lack of meter tools. We cannot know how much change provide this or that ability, taking those items, or using that Mundus Stone. We don't even have combat text, for God sake!

So, I need you, oh PC Master Race, to help me with my doubts. What's better for a Templar Healer?:

• I know that The Ritual is crazy good because 5% more healing has to be great if the 8% of the 'healer' set its awesome.

• But I read that The Apprentice is the most used mundus at healing guides. Spell Damage...well...I can understand that SD is good, but better that The Ritual? And...how much better?

• I know that crit healing is extremely important too...so, may The Thief's 12% crit be even better? Maybe...I don't know...I cannot know :(

I hate to be so clueless in a MMO...