best centrifugal juicer

Do centrifugal juicers destroy vitamins through friction?

I read a couple years ago that they do. Would'nt this also mean that blenders also do? I have read that blending is the best thing for you because it releases "phytochemicals" but I've been leaning towards geting a triturating or masticating juicer lately. I am summoning the Juice Guru.

No, these juicers do not damage vitamins. Vitamins tend to be small molecules and the type of friction caused by any kind of juicer is not likely to destroy anything like that. Heat and chemical interaction are more likely to do that.
The fresher the juice, the better the vitamin content.

Slow Juicer Instructional

Hamilton Beach Big Mouth Juice Extractor 67650 $65.00 Juice extractor-Drink your fruits and vegetables-Fits whole foods for fast, easy juicing-Powerful 1.1 HP motor-Dishwasher safe parts-Stainless steel strainer-Easy to assemble and store-Cleaning brush included for easy pulp removal-Juice cup included...

Breville 800JEXL Juice Fountain Elite 1000-Watt Juice Extractor $299.95 Commercial performance. Home kitchen convenience. 1000 watts power up to 13,000 RPM for up to 30% more juice than traditional juicers. Over 40,000 filtering pores ensure smooth and delicious refreshment. Easy-to-clean components allow you more time for enjoyment. The extra-large 3"-wide (7.6 cm) feed-tube maximizes efficiency and cuts down your prep time....

Breville BJE510XL Ikon 900-Watt Variable-Speed Juice Extractor $199.95 The 900 watt, high-grade 5 speed motor features a built-in electronic smart chip that increases power to the cutting disc under heavy loads. As a result, the ¿lter extracts more juice and can make an 8 oz (250 ml) glass in just 5 seconds. The 3" (7.6 cm) feed-tube allows for the easy and ef¿cient processing of whole fruits and vegetables, without pre-cutting, slicing or peeling. It is uniquely ...