Dia,Absolutely.. He would be just as guilty as Loghain but, Alistair leads the charge-unless there's a mod that changes that.
He will lead the charge if he is king, but the premise of this thread is that he is trying to leave the Wardens and Ferelden because he couldn't get his way. I while it's fine that he will fight if he gets his way, the point is that he will desert if he doesn't get what he wants. Now, of course he doesn't desert because of cowardice, but he still deserts. Just like how Loghain didn't desert because he was a coward, but rather to get his way.
If he becomes Queen Andora's prisoner then he could be found guilty of cowardice because he surrender while he still had the means to fight.
I don't think that would be the case. He would surrender because its the law. That wouldn't make him a coward. Besides, he would have nothing to lose at that point if he fought, so cowardice wouldn't even be part of the equation.
Here's the way that works. If your unit is overwhelm and surrenders that is acceptable however, if you throw your weapon down and surrender during the battle then that is cowardice and a court-martial offence.
I don't think Alistair was a coward. He deserted because he took what he thought was a principled stand.
But Grey Warden still respect Anders and didn't just execute him on sight,
Why would they try to execute him on sight? They would just ban him and be done with him. Like Fiona. They aren't going to risk their lives killing a runaway Warden. The way they see it, he'll end up in the Deep Roads one day anyway.
Anders also a deserter by definition, but that doesn't mean all Grey Warden should execute him isn't it?
Anders isn't a deserter. He fought the Darkspawn. He left the Wardens after the Darkspawn were dealt with. That isn't the same as desertion. There was no battle to fight after that, and in fairness, the Warden-Commander had other plans as well. So it isn't like Anders should be expected to remain in Amaranthine.
The Wardens have no reason to try to kill Anders. Trying would only get one or more of them killed and would be a waste of a life.
And the only reason why Anders can live freely in the city of Templars is because the fact that he's a Grey Warden. Should he's just an apostate then he's being lobotomized before everyone know him
The templars left him alone out of respect for his service, either after the Blight or his medical work, or both.