Most people say trend following works better because you could potentially catch big trend even winning odds might be lower than 50%. However it is not that easy to catch the trend even your bet is right. quite simply, along the trend you could be stopped out if you use trailing stop. On the other hand, mean reversion trade has higher winning probability and you could catch the trend as well(reversed trend). I don't think the above two styles are necessarily mutual exclusive. They could be very much compatible.