Definitely the platform seller!
Graphics - 8/10 ~ They are the Sims graphics, not quite the Sims 2, but they were great for the time!
Audio - 10/10 ~ The audio was always great, but this one peticularly really did it for me! The awsome soundtrack really gave me the 'vacationing' feeling!
Gameplay - 10/10 ~ What can I say, the Sims really was the best game of my generation thus far. The game was wicked to begin with, but once Vacation was brought into the play, it is just that much better!
So overall, get The Sims Ultimate edition for like $20.00 and you will enjoy all the Sims packs, especially Vacation!