Sorry I didn't respond to this but I thought I'd wait until the end of the wedding season for us.
We used all 3 and the ursa mini 4.6k and found the ursa the best all rounder for the price especially using ssds rather than cfast cards .
Fs5 was great for handheld and the image was 7/10. Slow mo was good but quality isn't amazing.
C100 had the autofocus and all the trimming which was good, didn't need much grading but I found the image quite sterile personally.
Fs7 image was good, was a solid all rounder.
I also tried the fs700 with o7q+ which is great . Right now we are trying to decide our 2nd main cam to go with the ursa.
Thanks for all the comments - we are going to try and rent all 3 over the next month and try and test them out. If anyone else has any other opinions i'd be glad to hear them!
Are you talking about the fs7 here?
Whats your reasoning behind this? I hadn't really considered one.
Glad there is someone else with this problem!
I'm lucky that I have my wife to be the front of our business ... couples booking weddings love dealing with women especially if they know how to hold a camera!
FS5 has an amazing battery life and only uses SD cards which don't run out easily. FS7 can chew through batteries every few hours and does eat through even 64gb XQD cards in 4k at 60 fps pretty fast but it isnt as bad if recording in HD.