Since I'm here... I'm not into sweet either. I find that a lot of juices are sickeningly sweet and a lot taste artificial. I just can't get into desserts but for one exception (but it IS sweet).
My current ADV is on the sweet side, though, but it's not too much and it's a coffee/tobacco/vanilla hybrid, not a straight dessert.
Anyway, I totally understand your point - I too sometimes feel the need for something more straightforward, and most of all, not sweet. In which case I usually turn towards simpler tobaccos, mostly the first juices I bought and never finished as my vaping horizon expanded (I have a LOT of samples all over the place).
Your mileage will vary but...
- Check out Alhusion. Their tobaccos are quite famous, and for some you have the option to choose Unsweetened. They also have "tobacco only" juices, and the two coffees I tried (Mocha and Kona Kick) were pretty good (as far as coffee juices go) and totally unsweetened. They also have a coffee/tobacco blend (JG Blend) that I've yet to try (got a small bottle). Smooth Criminal is their most famous tobacco blend.
- If you like complex and original flavors, try out Birdsnest Elixirs. I just discovered them and was enchanted by Fanfare and Maestro. Fanfare is more sweet than Maestro, but nothing overwhelming.
- When I want something refreshing and not sweet (kind of like palate reset !), I like Lotus from Vape Goddess (green tea and honeysuckle, very fresh, relaxing, a clear, clean and not sweet) or Bettie White from Uncle Junk's (pomegranate, tart goodness).