In my search for a great coffee flavor, I bought a bunch from Virgin Vapor, and I'm very impressed.
As for tobacco flavors, I'm digging Halo's Tribeca and Voodoo flavors. Tribeca is very satisfying when I want a "cigarette" experience (if that makes sense), and Voodoo, for me, is more of an after dinner type smoke - it's very complex, almost like a bread pudding taste with hints of vanilla and raisins...but still in the tobacco family of flavors.
That iconic figure, Flava Flav, once said "Don't believe the hype," but Boba's Bounty by AVE has delivered. It's in the tobacco camp, but unique. I got it last week, and I've tried a little bit every day. It tastes good now, but from what I've gathered it'll only taste better in 4-6 weeks. It's THICK stuff...both in terms of the juice itself and its vapor production - and I'm learning that THICK vapor really satisfies me. I should have mentioned that about the coffee flavors from Virgin Vapor, too: THICK vapor.
I haven't yet, but soon I'll be ordering Heather's Heavenly Vapes "Legend" (formerly known as "Gandalf"), and I'm hoping that'll be another flavor to bring out every once and a while to truly enjoy. I can't comment on it from experience, but it seems like another one worth trying simply based on it's reputation. Another, based on its reputation, worth checking into is "Smooth Criminal" by Ahlusion...also in the tobacco camp; my order will be forthcoming on that one.
Lastly, the prices at Mt. Baker Vapor are worth noting: they're CHEAP! If you're order is $15 (after discounts, but before shipping), then they throw in a 30ml bottle for free. By the way, the 10% discount code is ECFTEN for ECF members. I'm not a fanboi of Mt. Baker, but I am a fan of reasonable prices! My strategy is to buy a decent quantity of high quality vapes for less frequent vaping (morning, after dinner, stuff like that) and lots of decent, yet cheap, stuff for all day vaping.
Here's a link to some of my reviews. You might be most interested in the coffee flavor reviews from Virgin Vapor. Also, I added reviews, so they're not all in the first post:
http://www.e-cigarette-forum.com/forum/general-e-liquid-discussion/456664-some-first-impressions-fun-sampler-packs.html