I've considered silicone hoses partly because they look so cool and partly because they should last forever, but some have problems clamping the hose tight enough to keep it from leaking so I've put it on the back burner (and there are lots of things on the burners toward the front). JB had a tough time sealing his hoses when he was using Evan's waterless coolant and went back to antifreeze/water.
Good luck!