Champion juicer for hard veg - twin gear for leafy greens

I just got a champion juicer today. After experimenting with different vegetables, I discoverd it jammed up when using 1 or 2 sticks of beetroot greens. Other than that its fantastic. Its much faster for hard veg in comparison to the twin gear juicers, and the quality is still very good, without losing too much quality where a centrifugal would kill all the live enzymes. I've concluded my twin health at home is ideal for leafy greens and the champion is the best for hard veggies. I don't really know much about blenders, as there are so many on the market, and i keep thinking of when i had blended carrot juice - it tasted rank. (ie bad, just bitty texture without any sweetness) So if anyone can recommend a good quality blender that doesn't kill enzymes id be grateful.

thanks