Hey guys
I have been lurking on this wonderful thread for awhile, but couldn't resist anymore, so hello! 
I have a question / curious. Considering Solas / Mythal situation and what part this may or may not play in future (possible) DLC, I was wondering did you have your Inquisitor drink from the Well or Morrigan? And why? I am doing my cannon 100+ nightmare playthrough and just about to go to complete this story mission at the temple, but as I can't decide which way to go I keep postponing it. On the bright side, because of my indecisiveness I have 100% the Hinterlands
Thanks!
Shallow waters already pointed out some good reasons for and against drinking from the Well but I thought I'd add my 2 cents in. 
My Lavellan is a rogue so maybe she is less inclined to drink than a mage Lavellan, but my reasons for not making her drink from it include:
- Finding out that the elvhen gods are not like how the Dalish thought they would be and are actually pretty horrifying.
- The thought of being bound to the will of one of the said elvhen gods after finding out that they're not very pleasant beings? Not very enticing.
- And the thought of having thousands of voices in your head? No thank you.
- Cole warns the Inquisitor against drinking from the Well, and I trust Cole.
- Solas also advised against drinking from the Well, but then again he also doesn't want Morrigan drinking from it either. 
My Lavellan is already stressed with having the Mark, I don't think she's down with the idea of being bound in servitude to an elvhen goddess who could potentially be nuts.
Plus, I headcanon my Lavellan pretty much lost faith in all the elvhen gods by that point. Especially when she finally met Flemythal and found out that she's been around this whole time and did nothing to help the People but is instead busy with her little revenge plot. 
EDIT: Also, it's pretty amusing seeing Morrigan's reaction as she finds out that she just bound herself to her mother, of all people. 
EDIT 2: I might make my mage m!Lavellan drink from it though, because heritage and knowledge and all that jazz. 