There have been a few threads on this subject. I have shot two weddings in the past and I was very nervous about the whole thing, fortunately the shots turned out well.
Unfortunately, there is a HUGE difference between what your "well" and the "well" of a professional or experienced photographer are. Also, more precisely, what the B&G expect and deserve are pictures a little better than those that turn out "well".
I put the camera on auto (weddings are not the time to play with settings and get experimentally technical)
For the inexperienced photographer, this is the "safe" thing to do. It is, sadly, FAR from the proper way to get the best results. Leaving the choice of metering to some unknown Japanese engineer over the choices of the experienced photographer is as great a difference as a comparing a student driver to a Formula race car driver. Not quite the same planet.
I avoided problematic lighting situations (the camera did well on its standard metering)
See above. An experienced photographer sees no such things as problematic lighting situations. They see situations and opportunities to create unique results.
I decided the what, who and order of what I was going to shoot before the wedding took place.
I have a list of 200 things I do BEFORE the camera even comes out of the case, near none that have anything to do with photography. I then have a list of 100 items that get done BEFORE the first picture is done. I then have a list of the top 100 pictures that I want to take and the top25-50 MUST HAVE pictures that must be taken no matter what.
Again, leaving the metering in the hands of ANYONE but you... shows a clear lack of understanding of even basic camera metering. YOU CAN DO BETTER YOURSELF!
I visited the location and decided where I would be taking the majority of the pictures, should it be sunny and a location should it be raining.
In real life, a photographer looks around, gets a few ideas, maybe even writes down a few notes, but VERY RARELY what he decides comes to fruition. A wedding is EXTREMELY dynamic and ever changing and evolving. Most times, the photographer cannot even make the decision of where/how the pics happen, the B&G decide.
That was about it for me, I didn't make it anymore complicated than it needed to be. Hope this helps.
For someone with less than 6 months of camera holding time, I am sure it bolstered their confidence... unfortunately, if you do the research, you will find out that it is a LOT more complex, a LOT more challenging and a LOT less than what you could or should be offering the wedding couple if you are the main photographer. If you are someone just playing and learning, do all that you want, however, if you are the primary, let me be frank and say that your results, based on your displayed level of knowledge, will be far below what they bride and groom deserve on this most important and unrepeatable day.