Dual channel RAM is always "better", however, it's usually by only a small margin.
As for the H110 chipset, I would recommend against it, because it cripples almost everything and will affect how fast the CPU can interact with the other components on the board and limit your memory configurations. I recommend to go with a H170 board instead.
As for the H110 chipset, I would recommend against it, because it cripples almost everything and will affect how fast the CPU can interact with the other components on the board and limit your memory configurations. I recommend to go with a H170 board instead.