Renewable energy sources - Are Vertical-axis wind turbines better?

Are alternative energy Vertical axis wind turbines better? These types of Wind power turbines are usually used mainly for homes in urban, suburban, and rural areas which make sense and does not look as threatening as the traditional types. Did I also say this type of wind turbine is "bird friendly"? The traditional ones kill many birds and bats, as the tradition wind turbines are way too fast and noisy. The birds are able to see the verticle axis wind turbine types, thus avoid crashing into them, plus they are very quiet.




See Video about the traditional wind turbines compared to the Vertical-Axis Wind Turbine.