There's nothing developers are worse at that tuning difficulty, because nobody working on the game has any idea how hard the game is. There always seem to be parts of the game that are much, much harder than the rest of the game.
That's why I generally go normal. It's never a cakewalk for me and that way I can handle difficulty spikes. If I like the game enough I'll play it again on higher difficulties.
Yeah. At one point I was trying to play through all the single-player Halo campaigns but couldn't get Halo 2 in time, so I just watched someone playing it.
My wife and I would occasionally play through JRPG's together, and mostly I'd just hang out with her while she played. I find them a little monotonous to play but fun enough to hang out with the wife and watch.
I'd love to see a new Space Marine or Dawn of War game from Relic. The whole THQ bankruptcy made that pretty much impossible, though. And even without the breakup, I think Space Marine was a sales disappointment.