Both are wuxia/ about martial arts heroes set during a historical period. Both have great martial arts, great actors, great productions but plot points that are dragged on to frustrating levels that make them not worth watching imo. You might keep watching anyway if youve started them already due to their good points I mentioned and their addictive natures so its better you dont start them in the first place
Both tell the same (kind of) story but the 2006 version is soooooo much better! Liu Yi Fei as Xiao Long Nu is an infinitely better choice of casting than that Michelle girl. The 2006 version is so heartfelt and addicting and Huang Xiao Ming (especially in the later episodes) is the perfect man for Yang Guo.