It's an interesting argument. I find a lot to like in both Temple and Crusade and I guess I didn't focus on the negative or didn't want to. The mine cart chase is one of the more preposterous things in Temple, but I still enjoyed it. Aside from the heart ripping, that is. Crusade: for some reason, any of the humor coming from Indy or Henry I enjoyed, but that of Marcus and Sallah pulled me out of the movie. But not enough to ruin it.
What did you guys think of Kingdom of the Crystal Skull? This is the one that lost me a bit. "Nuke the fridge" and CGI monkeys seemed a step beyond any previous stupidity, although other parts of the movie didn't bother me. The maguffin being aliens instead of magic didn't bother me. Mutt didn't bother me. Maybe I'm too forgiving.
I'm actually not very familiar with Barry Windsor-Smith's bibliography. The main thing of his that I read was the Weapon X collected edition which I enjoyed. Once when a local comic shop was closing I scored a deal on his album-sized "Barry Windsor-Smith's Storyteller" which I mostly enjoyed. But I never read his Conan or any other seminal work.
for me, Crystal Skull was just a natural extension of the crap from "Crusade". I had no more "f"s to give by that point.
At least Temple tried not to be an exact carbon copy of Raiders.