Billy Connolly is my favourite, and I keep on missing his (increasingly rare) tours.
Met Jack Dee in 93 - he shook my hand and said "Christ, you're a big b****** aren't you?" Then he p*ssed off backstage before being very funny onstage.
Saw Frankie Boyle before he was famous - always thought he was a smug b****** - seems I was right.
Adam Hill, Dylan Moran (lives round the corner from me), Bill Bailey, Dave Allen (RIP) also up there in my esteem.