I have the LV DX-60, which I like very much, but I've also had my grimy mitts on the LN bronze plane you show. Garrett brought one along to give as a gift to the wooden plane dia maker we met. Garrett calls this little plane "Powerful" in that is is small enough to have on hand all the time, yet it is such well made tool, that you can use it to do a LOT of stuff.
If that is what you want, a small powerful low angle plane, I don't think you would go wrong with either, but, if it were my money, I'd be buying the Lie-Nielsen one.
Oh yeah, I'd stick with A2, I don't find it any hard to sharpen, and it does stay really sharp longer, I use water stones.
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward