I read this game as the battle of the inconsistant teams;

West Indies

1. Are now well known for there middle order collapse
2. If Gayle goes early they seem to struggle to make a good score
3. Extra pressure for them to perform at home

Pakistan

1. Questionable bowling attacking - will they be able to contain the runs
2. A low score against them and they should win with the batting power they have
3. Are well known for not showing up on the day and performing well under there potential