If the VX-1 was made in 2012 or newer it is a far better scope. Leupold upgraded their entire lineup at that time. If it has click adjustments it is the newer version and is essentially an older VX-2 selling at VX-1 prices.
If it is an older VX-1, I still like the Leupold better. But it is a closer comparison when it comes to glass and other features.
Regardless of when made the Leupold will be lighter and have far better eye relief.