I bought my Nautilus (Original/Full Size/5ml) version today and they come with the BVC coils. In fact, the BVC coils were so successful my local B&M told me that Aspire sent them coils to replace their existing BDC kits with the originals. The BVC is that good.
I have vaped the iClear, iClear30, Aspire BDC, Protank II, Aerotank and many others on an MVP. They were all good in their own way, but none of them comes close to touching the Nautilus with BVC. My Kayfun (for the time being) has been relegated to the vapebox, and I will be vaping my full size Nautilus with BVC from now on.
P.S. Just as a comparison, I'm vaping my Tesla with a TOBH dripper right now at 15 watts and blowing less clouds and less flavor than my MVP with the Nautilus at 11 watts. Buy the Nautilus. It's a bargain at $30.