Best, no idea, but this is what we use !
Pretty fancy, many here just use a 5 gal. plastic pail salvaged from somewhere. I can't take the cold so well anymore, wind actually, so I have my old Fish Trap rigged so I can have the top half way up for a wind break. Folds down easily when I stand up so I'm not chasing it across the lake.
Then there was the first year I tried ice fishing. Windy day with a two man clam on mostly smooth ice - coulda sold tickets!