Let's see. I visited an insane amount of new parks (for me) and picked up 74 new credits.
Favorite new credits: Bizarro at SFNE, Ravine Flyer II at Waldameer. Honorable mentions include Hades, Intimidator 305, Ride of Steel, S:ROS, The Comet at TGE, Avalanche/Hellcat at Timber Falls Adventure Park, and Shivering Timbers.
Favorite trips: For a weekend trip, definitely visiting SFNE and The Great Escape with Leo. We got 9 rides in on Bizarro, with six power-riding at the end of the night. We memorized the movie quote reel so well we quoted it the next day... while going up the lift of the Comet. We got ten rides on the Comet which was pretty great. We also balanced out getting great rides on the Comet and Bizarro by riding the ultra-crappy Roller Coaster at Hoffman's. When we slipped through the brakes after 3 rides I was really disappointed we had to go again.
I also took a trip I have dubbed the "Chicago/Midwest" tour. I spent four days visiting SFGAM, Michigan's Adventure, Indiana Beach, Mount Olympus, and Timber Falls adventure park. This was my longest trip of the year and I had a great time.
Lucky credit of the year: Happened to be at Darien Lake the day Ride of Steel re-opened, which had not been announced in advance.
Missed credit of the year: No multi-day rollercoaster trip is complete without a missed new credit (and I usually miss star attractions). I did not get a ride on the Cornball Express at Indiana Beach.
Most anticipated ride of 2012: SkyRush at Hersheypark. This is going to be awesome.