I like Chong a lot, and will be voting for him in the leadership contest this spring.  I do think he'll have difficulty winning the leadership (he'll need a lot of voters to have him ranked #2 - #4 on the ballot to overcome Bernier's wide appeal), but if he does he'll give Trudeau a good run for his money in 2019.  I like Chong, O'Toole, Raitt, and Bernier (to a lesser extent).