Of these two, I'd go with the Lexus simply because of resale value.
What is interesting is the sales data mentioned in the article. When you include these two cars, plus the competitors listed (including the inexplicably missing CTS), sales to date in Canada are (US to date in brackets):
1. E-Class - 1268 (22,252)
2. Genesis Sedan - 681 (17,270 - includes coupe)
3. 5-series - 677 (23,581)
4. A6 - 363 (11,409)
5. CTS - 319 (9,689)
6. GS - 172 (11,142)
7. Q70 - 97 (4,484)
8. RLX - 88 (1,200)
It really looks like people want either the cachet of the BMW/M-B, or the value of the Genesis, in both Canada and the US. The Lexus, along with the Audi and Cadillac, form a second tier. One also wonders how many people choose the ES, or loaded Avalons and 300s as an alternative.