They are pretty much same in component quality. G1 sniper has slightly better in power design with newer revision of IR pwm and IR mosfets. It also offers by far the best onboard audio solution in the z87 market with Creative Core 3D. NICs, on the other hand, are pretty much similar. Hero has Intel nic which is a great performer, G1 has Killer which is also a great nic and also offers a nice software suite with cool features (like customizing the network/internet and prioratizing all the traffic the way you want).
So if you are between these two boards I'd suggest G1 sniper.