Personally, I would go with something horrible that you dont want to smoke lest you be tempted to smoke them more and your E-Cig less. Before I realized I needed no smokes with my E-Cig, I was planning on a pack of Benson and Hedges Ultra Light 100s as my "wow, I sure wish I didn't need to smoke these annoying, horrible tasting pieces of..." emergency backup - something I would really hating smoking, you know. Might make it much easier to get off the smokes if you just really cant stand smoking them.
So instead of the Dunhill's, I should go for Marlboro Light 100 Menthols. (Seriously, I can't think of anything worse!). I see your point. Interestingly enough, B&H Lights were my first domestic brand, but the Ultra Lights (and any ultra light for that matter) tasted like chemicals!