Here at Fstoppers we use exclusively Manfrotto tripod heads and in the past we used two different types of plates. For still photography we used the 200PL plate on ball heads and for our videos we used 500 plates on pan heads. I have always hated the longer 500 plates and today we are finally getting rid of them.
If you're using larger video cameras, the longer 500 plates and 500 series pan heads may be necessary to balance the cameras properly. The problem is that the plates are giant and must be removed from the cameras before we put them in our bags. These plates have a screw on the bottom that requires a key or a coin to tighten it and I can't tell you how many keys I've bent trying to put these things on. To make matters worse, they constantly come loose no matter how hard I tighten them. As we transition over to the much smaller GH5 system, we no longer need such hefty gear and I am thrilled to never have to use the long "video plates" again.
We now have only one type of tripod plate in this entire office and that is the 200PL. The 200PL has a pop out bar that allows you to mount and remove the plate from any camera without any tool. The plate is small enough to be permanently left on every single camera in our office and it doesn't need to be removed to fit into our bags.
For still photography I like using a ball head and I think the most convenient one is the 322RC2. This ball head has a spring loaded handle that allows you to grip, move freely, and then release to lock into place. It can also be rotated 90 degrees for vertical shots.
For videography we now use exclusively MHXPRO-2W heads. They are dirt cheap, at just $115, and they are extremely small and easy to travel with. They obviously aren't as luxurious to use as the larger more expensive models but for us, this type of head is perfect.
If you want to add a 200PL plate mount to anything, all you need is the 323RC mount. We put one on our gimbal so that we could have a quick release and wouldn't ever have to worry about balancing it again.