I just bought my 4-day pass plus sneak preview night (free with 4-day pass).
I'm really looking forward to being able to attend Comic Con in good health for the first time in 3 years. Last time, I could only go for 2 days because I had dialysis on Wed (sneak preview night) and Friday (Star Wars Day).
I enjoyed getting to hang out with Figrin Bran, El Chuxter, JediTricks, SirSteve, Deoxy, and more, plus meeting CrunchyNug at Wal-Mart for the Clone Wars Midnight Madness.
Plus my favorite part of last year's Comic Con was hanging out and chatting with Hasbro's Star Wars Team. Darryl, Brian, Mark, and "exclusives" Brian are always really cool.
This year I hope to be able to get into some Terminator: Sarah Connor Chronicles event or Smallville one, not to mention anything cool they might do for Star Trek and Transformers.
Meanwhile, I recommend waiting until they publish the schedule for each days' events before we try and set up the annual SirStevesGuide Comic Con picnic.