Who will win the quarter-final at Crucible: O'Sullivan or Selby?

Tweet

At the end of the first session of the quarter-final the result is 4-4. The type of snooker played by Mark Selby it's not suited for "the rocket". A more tactical and boring game that can put Ronnie out of his game. The first frame lasted almost 50 minutes. It seemed unbearable for Ronnie. I think Selby will win this match if he'll manage to play a more tactical and longer game that Ronnie doesn't like. Who will win?