"The hottest place in Hell is reserved for those who remain neutral in times of great moral conflict." - Martin Luther King Jr., employing Dante's Inferno
(Warning: DA2 Plot spoilers) That's basically my opinion on the matter. I find Anders to be one of the most polarizing characters in the Dragon Age--even my sister and I, who are very close and think remarkably alike, came out on different sides of Anders' assault on the Chantry. Asking players to step into the fantasy ideologies of mages and the chantry is roleplaying gold, I think.