In my country i have access to a few poker rooms , so i dont know for sure , but i think pokerstars has the better freerolls ,the freerolls with the more money allthough the number of participants is too damn high .
But if you want many times to play freerolls during the day , you should choose another pokerroom .Duckpoker has 10$ freerolls all the time ,many every hour , and a 20$ facebook freeroll at night where it is very easy to take money . I dont have access , unfortunatelly , to unibet and some other pokerrooms , such as the americans , the party poker etc .
I tried FULL TILT, it was very hard to get into the money .
888 poker freerolls are easy to get into the money but they dont have a lot of money and they are a few only