Is the Troll regen for Shaman noticable?

[Vanessa]

I'm planning to play either an Ogre or Troll Shaman, but unsure which to go with.

Since Shamans convert health to mana with their spells, it makes sense to go Troll, no? But I've also heard people say the Troll regen isn't very good anyway and that some people hardly even notice it's there, whereas the Ogre stun resist will you save you from having to recast your interrupted spells?