Who is JTW?
Well I completely agree that focusing on one group/one character at a time drives me insane...weave in the plots and follow more than one group per episode. They did this crap all of last year and it was so slow. Then throw in the fact what's been stated re: Beth not being all that interesting and a whole hour there was way too much. Personally I am fine with the group being back around Atlanta if that is to happen for a limited time but I am not really all that interested in the hospital, except what happened to Carroll. The first 3 episodes were awesome because they gave us quick development and tons of action, so it is not really surprising they slowed it down for episode 4. Not every episode can be climactic, although there needs to be more development than what happened Sunday.
The rapists and cannibals...pretty believable to me. There is quite the lack of females, let alone good looking ones like Beth...we have a disturbingly high amount of sexual assaults when there are laws against it with harsh consequences, yet even Jameis Winston resorts to it with plenty of girls at his disposal. In a lawless society with limited girls, I'm a little surprised we haven't seen more rapes yet to be honest. To that point, they have even softened that aspect considering they haven't alluded to girls much younger than Beth (she is about 18 per the show timeline I think). And the cannibals are a little harder to believe but I suppose if you are out there starving (what Garreth alluded to with Rick), then one might resort to it and stick with it out of convenience eventually (see the Donner family). And really, the whole group-think psychology checks out even in civilized society for the depraved acts (gang rape, genocide, etc.).
As to the trip to DC...that could definitely be something that would warrant an entire season/most of a season considering it is nearly an 11 hour drive without miles of piled up cars, zombies, and other groups of people foraging around along the way. Not to mention once they get there it is going to be overrun. At this point, getting out of Atlanta with a cognizable goal other than "survive" will be interesting enough to me pending the execution by the directors, which is obviously a huge wildcard. I am interested to see what comes along the way and how other groups in other states have adapted. All this being said, the hunters story arc ended way too abruptly for my liking...hopefully there are still some out there because that was by far the most intriguing storyline to me of the series.