Erm depends on conditions. In the dry I think that the racing ralphs are the best tyre about. I havent found my perfect tyre in the wet yet but medusa in using are ok but get them in a smaller size and softer compound. Everyone has different preferences but you should also play with tyre pressures to see whats the optimum for each tyre
Green people might argue that cyclists deserve a tax break because they aren't polluting the environment, but cyclists burn energy similarly to cars: their increased demand for food isn't great for the environment
I tried the Racing Ralphs and found I got nothing but punctures with them,im talking every ride at least one if not two!!!!!!!!!!