I'm rather disturbed about what I've been reading. It almost sounds like the mage path, despite actually showing the doomed future, provides you with an inferior understanding of Corypheus and his larger plans. Plus Calpernia is apparently a more compelling character than Samson. If these are indeed true, then my canon revolutionary mage will have to side with the templars just to get the full story, and I hate that. Why can't both sides provide you with the same information, and simply change the context of how you learn it? By the way some people describe it, the mage path is objectively worse and keeps you ignorant of some very important details.
Actually, the mage path revealing Corypheus' plans makes more sense on the templar path. Seeing the future means you know exactly what happened whereas the templar path simply has the envy demon accidentally blab about what he's going to do which makes it quite idiotic in retrospect. Calpernia is only relevant in her side mission and in What Pride has Wrought. Apart from that, there is really no difference. Plus, the red lyrium being very prevalent makes way more sense if you side with the mages than the templars as red templars are supposed to stop being a thread if you side with the templars. Also, side with the mages and get Leliana as Divine if you really want to help mages. Siding with the Templars doesn't give as much benefit to mages as siding with the mages does. Also, you may get some extra information about corypheus if you side with hte templars but its simply his reactions to things and is nothing really necessary. Plus, Samson's quests helps give better development with Cullen as Samson could reveal what Cullen could have become if he never changed his views. It's interesting to see Cullen become quite introspective about what he could have become. Just look at the Samson thread. Also, the mage side being objectionally worse is false. Those people are just stating their opinion. Plenty of other people have also said that the mage mission is better than the templar one so simply relying on forum opinions might lead you to disappointment, especially given that people who think the mage mission is better are more numerous outside of BSN. Trust me, if you are really a hardcore pro-mage, you are going to be VERY disappointed siding with the Templars. Are you willing to abandon the mages to enslavement, brainwashing, and death for the actions of some?