Stock price when the opinion was issued
These ones are good because they're ex-North America (so no Canada) instead of just ex-US (some Canada). With ex-US, it's inefficient tax-wise for Canadians because you get tax withheld when the dividends cross the border back to Canada.
These two are similar. VIU is larger and more liquid, fees are very low. Popular, as many investors want to sidestep the US-Canada trade conflict.
For investment vehicles that hold equities from international, developed countries, what kind of account to hold them in depends on a whole bunch of things. Consult your tax adviser whether withholding taxes might be foregone if you hold this type of ETF in an RRSP.
(A Top Pick Oct 31/17, Down 1%) They are buying because it is outside North America and currency hedged. A good way of keeping a position outside of markets that might be overdone at this point. It’s more of a general position in their portfolio.