My conventions started around 1996 and became an annual summer tradition by 2007. After seeing Nichelle Nichols at a book signing, I saw John DiLancie, LeVar Burton, Ethan Phillips, Terry Farrell, Sally Kellerman and Kate Mulgrew at separate conventions. Mulgrew was incredibly witty and consistently funny. Phillips also had many amusing recollections. But in the end, being classically biased, my best experience would have to be James Doohan in '96, at my first convention.