Ah, ain't it fun? I shoot in the harshest sunlight imaginable 90% of the time it seems 
I will sacrifice the sky for faces.
HSS on your flash is your friend. I'm not a fan of it a lot of the time during the ceremonies, but a lot of that has to do with how everyone is arranged and where I can move etc.
I often won't shoot wide open but I can't remember the last time I went past about f5.6 unless it was for group shots or unless I was trying to get a sun star or particular flare or something.
That half shade/half sun thing you have going in post #8 really suckaroos for getting a great shot of them both. I feel for ya.





