I like frerolls with a big prizepool as it's not very satisfying to waste 3 or 4 hours for 1 or 2 bucks. Also I enjoy restricted freerolls where there are not many people playing and no morons
, who spoil the game. Freeroll is a hard and an absolutely crazy game. Often even anti-poker, because there is no place for tactics there until only few players left. Only gamble.