To be sincere, in as much as I don't hold Tron but looking at the list, it is the only coin worth buying and holding for that long because the CEO is very active and Tron blockchain is finding more interesting uses such as USDT being sent through Tron blockchain which comes with little to no fee; so to a reasonable extent Tron will last that long.
Weird for me Justin Sun and him shilling Tron is the biggest reason to stay away from it.
Actually, I wouldn't buy either of the three coins OP has suggested. Ripple is done after that SEC drama. Never was a fan of them anyway but now you should really stay away from it.