KIS
On most of the rides, certainly the 'kiddie' rides, you will have plenty of time while waiting in line to check out the cars, etc. Most of the queues wind their way back and forth near the loading areas.
Many rides have bench seats that will accomodate 5 or maybe 6 people. A CM will ask you 'how many in your party?' as you are preparing to board. You will then be directed to a numbered row where you wait for the next boat to arrive. The guests that have ridden will disembark on one side, while you board on the other. Very efficient, I think, because everyone is ready to hop on when the boat pulls up. Examples of this are, pirates, small world, WDWRR, mexico, maelstrom, safari at AK, living with the land (I think), the Great Movie ride. On these rides generally speaking your family will get the entire row even if you don't fill it.
TTA holds at least 4, so you will all fit in that. Pooh's honey pots I believe have 2 rows in the car, so you and daughter can ride together while DH rides in the backseat. Dumbo would be 1 adult and 1 child (or 2 adults), Peter Pan, you could all fit in the ship as well as tea cups and HM. I think the barnstormer is 2 seater, but again DH could be in row directly behind you. Buzz will accomodate 3, but there are only 2 guns. The Jungle cruise has a row of seats around the perimeter of the boat and a long bench in the center so you can all be together there (try to get in the front of the boat if you can, the drivers sometimes call a child up to help drive the boat). I believe Splash is 2 riders per seat, and not sure about BTMRR. Kali is a circular boat with 8 seats, arranged in 4 pairs.
Can't give much advice on MGM, not all that familiar there. Also don't do thrill rides often, so I can't help there either! Anyway, that's alot of info to digest
and I'm sure I missed lots. Don't worry though, as I said before, you can almost always see the cars before you get in well in advance. See you there!