eh it really depends on whos hosting. i like when they are all in a specific area (ie york, onnet, onnet forest), and also when there are a lot of chests 20-30. butsadly ive only won gralats, and it only gives a small amount a that. the only time every chest has a hat is when there are only 3-10 chests scattered far and wide across graal, usually containing a rather crappy hat. i think the gralat prize should be 1000 and always have at least half of the chests contain a hat.
and yes i agree wth tepig, it is difficult to locate the exact spot of a chest, so i think the digging grid should be redone to be more like the grass grid