My ideal death would be at the end of my ideal life.
I would be 69 years old, own a small hotel on the Irish countryside and i'd have a beautiful young 20 year old Eastern European wife and 2 children, one boy and one daughter.
As i'm sitting in my rocking chair, overlooking the green Irish valleys with the sun in my face, the laughter of my kids playing in the background, pint of Guinness in one hand, Petersons cigar in the other, my hart would come to a sudden stop. Everything goes black, no pain.
That would be my ideal death.
Realistically though, i'll probably end up getting run over by a bus or dying of a heart attack when i'm taking a dump.