Livewell 100% of the time. My livewell is 30 gallons, including the bait well section.
I have timers and let them run when there are fish in the livewell. I change the water over in the livewell with fresh water all the time. No aerators, just pumps that draw in fresh lake water every time the pump kicks on.
If it's hot out, I use the 1 minute cycle, cool out the 7 minute cycle, cold out I manually turn it on and off every 1/2hr or so. There is a 3 minute setting, however I hardly ever use it.
90% of the time I will clean the fish at the ramp cleaning station. If its closed, I carry gear in my trailer storage box for cleaning on top of the box. 12volt fillet knife, cutting board, 3 different sized stainless steel bowls and there is always 2 quarts of fresh water in the boat. I even carry zip-lock freezer bags and garbage bags for the remains. Also been known to leave the plug in the livewell and drive the 1 to 2 1/2 hours home and clean them in the driveway. Or back at the campsite. Basically I can clean fish where every I am. I also carry a 120v fillet knife.
The 54 quart livewell / cooler in the back of the boat mostly holds cold beverages. However, if I need it for a livewell, put the plug in and turn the pump/timer on.
HOI Crappie Club
Where family and friends come to compete for a little more than bragging rights.
Quick, someone teach me how to fish so I can win this tournament!!!