I always use Regeneration Perk. The other one, I never used but I ain't a Vampire so I don't care much for it.
Regeneration Perk doesn't Double your healing power though. It is x1.5 (%50 more is .5 + the normal 1)
Also, there is an ability that you can unlock to make healing spells like 15% better so there is %65 (.65)
So in total, your healing spells can be x1.65 of its normal amount. Example: Healing is 8 points normal. 8x1.65 = 13.20 which rounds up to 14 or down to 13. (Idk which way the game actually rounds to, I need check real quick)
Healing starts at 10 per second, goes to 15 with regeneration perk, 16 with sailor's repose. I think sailor's repose works off the base 10. Cutting magicka spent by 50% and healing an extra 50% is an excellent use of 2 perks. 100 magicka can always fully heal any level of warrior. Mine costs 5 per sec to heal 16 per sec. 20 secs of healing is 320 health, about the amount of health my level 37 warrior has.