The problem being, my beef with Loghain isn't the "Grey Warden equivalent" (doing the hard choices for the greater good), it's his utter stupidity (or the terrible story writing). I would have fought but respected Loghain if he actually "betrayed" the Warden and made ugly decisions that would have helped the Kingdom. But the fact is, EVERYTHING he did was utterly, totally, completely counter-productive on top of being morally bad. Not to say wildly contradictory (he often manages to make two completely opposite arguments, and acts in ways that directly goes against his own decisions).
I don't know if it's bad writing (he's SUPPOSED to be smart after all) or just a hamfisted way of making the player hate him, but I just can't find respect, or compassion, for someone who just does the bad decisions for the bad reasons, with stupidity in mind and ends up with terrible results.
A couple of things to consider. First, he actually didn't know why Grey Wardens were required to end a Blight (because Grey Wardens love their secrets), and he felt like Grey Wardens were Orlesian, which isn't true, but he is way seriously straight up paranoid. Everything in his world is coloured by his hatred of Orlais and all things Orlesian. He has good reasons for this, but his blind hatred made him, well, blind, and he didn't even have all the facts to begin with.
I'm in no way defending him, because he did some pretty horrible things, and supported Howe in doing even more horrible things. The ends do no justify the means. He seems to have sincerely believed that he was protecting Ferelden, but he wasn't, and it was his own blinkered worldview combined with just plain not knowing. I don't know if I'd call him stupid, exactly. Just really unable to see beyond his own point of view, and, as is mentioned in the game, thinking that he's the only one who can fix things.
Unfortunately, a LOT of Bioware characters come off as insufferably stupid. DA:I is rife with it (Clarel, Fiona, the entire Templar Order, most of the ranking members of the Chantry, the Venatori, pretty much every Orlesian noble, and on and on). DAO has Cailan (who was, actually, supposed to be a fool), Loghain, Howe (seriously, dude, you thought you'd get away with that?!), Zathrien, and more. In DA2 there are plenty of stupid people making stupid decisions of all sorts, too. I think it's the nature of the game that they try to convey what's going on and how complex thing are, etc., but they can only give just so much background information and it tends to make the characters who are making complex, difficult decisions for complex reasons just look like morons who can't think their way out of a wet paper bag.
This is part of why I'm such a lore hound. The more I know, the more I like it, because the better I can understand the complexities of the story. I love good storytelling, but when you only get the barest hints in the game, it's hard to get it. When I went into DA:I, for example, I hadn't read The Masked Empire and I had pretty much no clue who Celene, Gaspard, or Briala were, nor any reason why I should care which one of them was on the throne of Orlais or in what combination. The first playthrough I just kinda went, "Uh, well, Celene's already Empress, okay we'll go with that, I guess". It wasn't until much later when I'd had a chance to actually learn about these characters that I felt I could make an informed decision about them. (I do hate that in order to play a game fully you have to read a book or three about it, but I guess it's just a compromise because the DA story and world really are that complex.)
Bleah. Sorry for the essay. I've been in a write-comments-as-long-as-essays mood all day for some weird reason. 