I don't think for the money Zeiss Conquest HDs can be beat, but I have not checked out the Maven glass. I cringe at all the Vortex recommendations, I have 4-5 pieces of their glass and will never make that mistake again. They just don't hold up well and when placed next to even mid grade glass(Zeiss conquest, Meopro) they don't stack up. All of my Vortex is their Razor HD line.