I am both fundamental for my long term trading and technical analysis in my short term trades. But most of the time I am relying on my technical analysis since I mostly do short trades. The trading success depends on how do you use that fundamental or technical in a proper way. Some may read and analyse that strategies in a different way that may lead their tradings a mess.
It's very important to have a good guidelines when working with your technical analysis knowing that shorting with volatile market is really a risky strategy, you have to know the right factors that affects the market movements while working with your analysis as mistakes with anticipating the market can ruined everything, though it's still better to have patterns to follow but most of the time traders have it's different approaches they are just picking working one to achieved their goals.
I have always thought that because of the volatility of market, fundamental analysis would be best in pace of technical analysis, but I never knew I was just saying so because I lack the knowledge to make use of technical analysis, until I was fully exposed to it, and actually using technical analysis is not much of a difficult thing, we just need someone great who is more knowledgeable to take us through it, then we will see that we cannot predict the market without having to use but the fundamental and technical analysis.
Technical analysis is very great and effective for both the long term and short term prediction, but it really require enough learning first if people want to really be able to make use of it, especially for traders who buys and sells often from the market.