Kyber is better in the sense that people who will use kyber won't get hacked. It is designed in a way that is immune to hacks. It has a downside which is higher fees but this fee may change with scalability updates. Gormos update will allow huge transfer throughput for kyber exchange and will decrease trading fees.

Kyber will also work for mass adoption of crypto and allow merchants to accept payments in crypto. I don't know if it is a threat to Request Network (well both are targeting the same market) but I am invested in both (one will most likely succeed xD).