So far, with the 6-7 One Stop Flavors and One Stop Blends I've tried...I haven't found one yet that wasn't good as a standalone. Since they're formulated to actually be standalones, I was surprised when Kimberly told me the LL & LS blend has been her ADV for 3+ years. Now, it's also 1 of my favorites, and almost an ADV for me, too. She said TFA Key Lime @ 5% + LS @ 10% is also good together, as a version of a Key Lime Pie. So, I tried it and liked it, too, and so did several vaping friends.
ETA: I think my next 1 to try is a 2:1 mix of the BRS and the PL that someone posted about on their website. He was trying to make a clone of something, and he said he and his wife both liked this much better!