Kinda like asking what the best car is =P
I prefer matrix myself, cheap for what you get and never had bio load issues when using it. Also have some eheim media in canisters and I dont notice the difference.
bio balls are best used in a tickle filter or to remove big particles from the water pending the fish.
Noodles are ok but I understand you are suppose to change them every 6 months or something + for the price of noodles down here its almost cheaper to buy matrix xD