Just did our first wedding.. Brought the 70-200 II IS 2.8L, 50 1.2 L, 24-70 I 2.8L, 8-15 f4 L, and the 85 1.8, along with the 580EXII and used the 7d and 5dII... the only lens not used.. 85 1.8....
I used the 24-70 for a majority of the shots.. I will have to agree that the 70-200 does have some great impact on the images too..amazing piece of glass!