Pure malt is heavier, smokey, caramel type vibe
one million lighter, fruits (berries), sugary
for date time use or as casual, you can use one million (just 1 spray or 2, its strong). its not very offensive although it can get cloying if over applied (can become very sweet). pure malt is good for crisp cold weather, also good for day time but not as versatile.
two seem different enough to own both. I own malt and plan on buying one million.