The reality is I make it up as I go along. As the keyboard shortcuts get memorized, the focus get on the splines. I get better as I model more regularly, as in one or two hours each night after the kids are down, and my wife is "happy"
Every panel on this car has been worked at least twice and there are a few places I just couldn't improve to get kinks out. I wish AM had the ability add a cross-section rib without manually adding splines. Even though the spline adding has improved, the bias handles still go wonky when adding a spline. Here's a tip. Don't end more than one hook on the same line. I got away with it below the door, but generally, they want to snap to each other, and when they do, unconnecting them puts them connected somewhere else. When adding a hook, make SURE you've moved it close to the line you intend on ALL THREE VIEWS. The bias handle will flip unexpectedly if it is far away in the other views, and it usually is if you add one to the end of a line. If you try to adjust it, BAM! goodbye AM. Sometimes, the handles "disappear" when you drag them. They moved, the view just needs refreshing (space key) HOWEVER, DO NOT HIT THAT SPACE BAR YET. Save as soon as you get bias handle funkyness. Hit that space bar and it's goodbye, charlie. This is MAC advice.
When hooks don't stop the creasing, go the distance and effort and make it go all the way through to another crease or the underside. Use the Properties panel to make precise adjustments to bias handles. Angle of bend and length of handles can be accomplished by clicking and dragging left or right on the numbers to the right of the box.
I can't give a panel render/discussion because AM 10.5n in OSX Panther 10.3.1 Classic mode does not preview render on any of my computers.
Here's the prototype after some painting;
EDIT: Holding something in your hands you've spent months modeling on the computer is way cool. The blue color is photoshopped over the primer, thus a little dull. The finished product will be gorgeously glossy.