Only one major buy-in...what do you play?

[rageotones]

just curious as to what everyone's favorite tournament is...i'm going to try very hard to play a major event w/in the next year, and i'm trying to gather opinions.

say you can only play one major event in a calendar year, and you must play one, what event would it be and why?

assume that you meet all the qualifications to play (e.g. age requirements), and that travel expenses are paid.