Best Multi I think is the Garden Of Life RAW brand, they have RAW for men and Raw for Women. The ingredients are all natural and none of the vitamins/minerals are synthetic. No after taste.
If I want a strong antioxidant, I usually skip my multi and take something potent like Defesne Armour 24 from Neuro Research Group. It has vitamins, antioxidants and free radical scavengers, also adaptogens, neuroprotectants. It helps me with improved energy and fighting stress (physical and mental). No after taste either.