BCH for small transactions with 0-conf is not slow as hell. When you require confirmations a system like Bitcoin has a quite random time between blocks, but 10 minutes on average.
IOTA has an absolutely unprofessional development team, doing things like saying critical security vulnerabilities are there on purpose so they can point it out when someone forks or saying that the network being unusable due to a DOS attack is fine because they can use it for testing. Don't forget the time they turned off the network for 2 days without any prior notice (yes, they can do that). I'm all for new technology, but Bitcoin is 9 year old proven technology at this point, while IOTA and RaiBlocks are both new and unproven. Let them mature a bit before suggesting people rely on them. Would be quite bad if someone turned off IOTA when you need your money, wouldn't it?