SH crew has been in East Blue, Grand Line & now in New world. It has been 900+ chapters. But aside from Zoro no one has shown even a speck of interest to become WSS. Luffy has rivals. He has Blackbeard, Kidd, Law all of them want to become Pirate King. As frustrating has it been to see Oda isn't going to make much of an effort to promote other supernova to become a threat to Luffy in fulfilling his dream he at least has other people who are interested in becoming PK. But after 904 chapter Oda still hasn't shown anyone who wants to become WSS. I wish Zoro had some rival. Someone he competed with other than Mihawk to become WSS but Oda hasn't shown a single person like that. Why do you think that is?