I got no idea how people are defending Loghain.
Lets give it a shot.
It was an improvised move to retreat from Ostagar (leaving even Cauthrien in surprise), it was planned in advance and for political gains - as evidenced by his minion Howe slaughtering the Couslands - children included.
Wrong. Word of God states Loghain had no foreknowledge of what Howe did to the Couslands along with no hand in it;Loghain was in no position to do anything about it once he found out after the act had occurred.
He (Loghain) doesn't care about fighting the Blight, and wants to kill all the Grey Wardens.
Loghain absolutely would care about taking on the Blight if he knew one was even occurring. The Wardens were so secretive, they gave him and everyone else no reason to believe a blight was even happening. Note that at that point in time, Blights were thought to not even occur anymore. It'd been a long time since the last one, people wondering what the use for Wardens even were.
His Orleais plan/feeling was correct, but what he did was for personal gain and led to deths of thousands and thousands.
Some through pre-planned murder, some through leaving the battlefield and thousands of his comrades to die.
And that's without even mentioning the Civil War etc.
Out of curiosity, what personal gain exactly? All of his decisions, literally all of them, even the morally reprehensible ones were done to keep Ferelden at its strongest, able to take on whatever force was working against it. As for the Civil War, his plan was to unite the banns;they made the decision to rebel and thus begin the Civil War.
Guy was a douche, no more suited for reign than Cailan. Difference is Loghain is a me-first-disguised-as-Ferelden-murderer, and Cailan was a well-meaning, naive glory seeker.
One is much better than the other.
Loghain is a moral turd.
There's no defending that guy.
Douche bag? Absolutely. Kingly material like Cailan? Perhaps a bit better if he ever went for the role(he didn't;he named himself King Regent in time of war yet Anora was the one truly with the power) but still wouldn't be the best choice, absolutely. Moral turd, thats up to you.