I finally found the time to finish the HummingBoard benchmarks. In the following graphs you find a comparison between the different HummingBoard models (i1, i2 and i2eX), a comparison of the i2 board running different kernel versions and a comparison against the Raspberry and Banana Pi.
Enjoy the graphs!
Hummingboard i1 vs i2 vs i2ex
HummingBoard i2 running different kernels
HummingBoard vs Raspberry Pi vs Banana Pi