We went to WoC in August when there were 3 shows. From what I've heard, the FIRST show is actually the most hassle-free so that's what we did. We ordered the picnics, picked them up around 6:30 with blue FP's and ate them in the area near WCT by the round planter of red flowers (right near the bridge).
I talked to several CM's as we waited, trying to get a handle on what would be happening. I got several answers, but the answer I got the most often was that they would discourage any type of line-forming until about 7:15, and that's exactly how it went. They used these purple barriers at that point to sort of "glob" us behind (not unlike a rope-drop) and then gradually "V'ed" the barriers to funnel us in when the time came. We were about 3 rows back from the front of the barriers, went for a spot that wasn't available to our group (although we'd been told earlier that it WAS) when they let us in, and then had to find another spot. We still managed to get against a railing with a very good view. I think the secret is to have a spot in mind (and an alternate spot, just in case) and go for it.
I found that some people were complaining through the process, but there were far more who were humorous about it. Actually, I found it to be fun to be "sharing" the whole experience with all these people--there was a Disneyesque lightheartedness about it all, and it made my experience a positive one overall. In fact, I thought it was comparable (if not easier) than having to stake out a spot hours ahead for Fantasmic and dealing with the blanket people who take up WAAAAAAYYY more space than they need to.
My husband and 19 year old son kept questioning me throughout the process (Is this REALLY what we need to be doing? Is this worth all this waiting? etc., etc.) They are both introverts and don't enjoy people as much as I do, so maybe that's the dividing line on how people's experience plays out...
Anyway, the BEST part of the whole thing was hearing them say afterwards that the show was worth it!
My sister and her family went a week prior to us with picnics and did the second show. They HATED the experience, as they were in line for hours. As we came out of our show, we SAW the line for the next show.

I can see why that would be miserable. Our wait time was mostly just people milling about--we were able to sit and people-watch and not be crushed by a crowd. THEY were made to stand in a confined area and wait for over an hour. Plus we got the pre-show, which was fun.
I'll be going again December 1, with the AG dinner package. We'll see how that goes, in comparison.