Never know, you might have created the dream combo.
Avery is a dream to install adhesive wise and tends to stretch further and conform better than 3M in my mind. Part of that is because it's laminate is thinner and that helps with the conform ability.
3M's Envision laminate is supposed to be easier to install through a wider range of temperatures and resist shrink back.
Pricing would come into play on this decision and I'm not sure I would use it for the additional warranty. There is know way your going to want to remove a 7 year old wrap. The adhesive will dry out. Also most commercial vehicle are sold in 3 to 5 years anyway. The people who keep there vehicles forever are the ones who bring you a beater to start with.