The Condor Heroes is a trilogy: The Legend of the Condor Heroes, Return of the Condor Heroes, and Heavenly Sword and Dragon Sabre. I would recommend watching it in order because they are connected and its timeline goes from that order too. It's good to know some of the character's background and how they are related.
Legend of the Condor Heroes 2008 and 2017 adaptations are probably better fit for you since they are the most recent. 2008 has well known actors that you probably know better - Hu Ge, Ariel Lin, Cecilia Liu. I think this version caters to more audiences. While 2017 is solid and more of a faithful tribute to the 1983 adaptation and to the novel. I haven't completed it, but I will.
I've only watch the 2006 Return of the Condor Heroes. Less on story, and more about characters and romance. The actress picked as Mulan live action is the female lead here.
I don't know about Heavenly Sword and Dragon Sabre because I never finished it.
BTW, CGI and animation are not great.