I am shelving my plans to go to Dollywood at this point and plan to try and do Kentucky Kingdom, Holiday World, and Dollywood around Memorial Day to see my family in Indiana and a New York State trip (Doreny-PA, Coney Island-NYC, Legoland New York Grand Opening, Great Escape, Seabreeze, SF Darien Lake). Might try and get up to New England for opening weekend of first weekend of August. Ignoring Flashback, Goliath, Great Chase, and Hurricane Harbor regardless.
Based off that, I would say Viper would be my 100th and either King (a Schwarzkopf traveling coaster at Foire du Trone, a carnival/state fair type event in Paris held in April and May) or Zeus at Parc Astrix (depends if Sandy is open by the 22nd of the next month).
I will detail a more detailed extent of my study abroad in the fall.