I have owned a Marin HT for about 12 years. I have literally beat it to death but it just keeps on going. I know several others who own Marins and they love them. If you are in the HT market and looking at those three brands I would say Marin and then the Kona. Does Kona have a 29er?
Marin has a method to put lower end parts where you dont really need them to keep the price low. Plus… Who can argue with a company that hails from the mother of Moutain biking? Marin County 😆