What is it exactly what you are seeking? More power? An one and only pair of binoculars? Large exit pupil?
The weight isn't one of your concerns I reckon? You don't even say a word about the NL 10x32.
The 10x52 is a great allround pair of binoculairs, but I wouldn't buy it as my only one. I would add a 32 for the days I like light traveling or birding isn't my main purpose (short walk with family, etc.).
I think the 10x52 crossed a line. The 42's are easy to carry without a harness. I prefer carrying the NL 52 with a harness (rick young to be more specific).
So yes, a great pair! But quite heavy. The NL 12x42 is the one what the largest AFOV. The NL 14x52 is nice for longer ranges and you don't want to carry a tripod/scope. But it's not really allround. I consider the NL 12x42 as quite allround (as are the 10x42 and 8x42).