I'd rather face the Sox because I think they're a slightly worse team than the Yanks.
But also, so much ink was spilled over the Jays or Yanks winning the division, much of that was because the winner gets to avoid the wildcard round. If the Yanks win it effectively erases the division win. If they lose it increases the salience of the Jays division win, making it even sweeter for us and an extra needle for them.