In the below example, bar 1 is "correct" as 2 beats are shown. and showing the second beat more quickly clarifies the beat structure. What about bar 2? Each is notated correctly on their own, but what is the correct notation for a grand staff? Same with bar 3. Does the eighth rest on beat 2 allow the bottom to become a dotted quarter as well? Or does that too strongly imply 6/8? Should the top become an eighth tied to a quarter? Leave it as is?

I have a gazillion rhythms similar to these to edit, so just wanted to make sure I knew the "proper" way before I waste a couple of hours doing them wrong. Thanks for any advice!