Those both bookies are very great and rollbit has been here over the past years as well as fortunejack and both haven’t had any unresolved issues over the time and I think you can trust them with over a $50k bet but to not always advisable to put your eggs in just one basket so I would advise that you split it.
Wrong. @Peeps Place literally mentioned that there were open, unresolved scam accusations against Rollbit within this forum. On the other hand, Fortunejack doesn't have any in comparison.
Both sites are popular for sure, but I would trust FJ with huge amounts over Rollbit any day though their BTC minimum withdrawal amount is too high.