This is one of those "Best jacket?" questions.
Water can appear in any boot through a hole in the leather/fabric/sole, or through sweaty feet, or simply through the open top of the boot if the water is deep enough or the grass is long and wet enough.
We are all different, so my choice of boot would not suit you in all probability.
However, my choice is to wear only what I consider to be a quality make, and that is Scarpa. I look after them properly as they are expensive and I can't afford to replace on a regular basis.
Check that any expensive boots you may buy will be resoleable, and have that done at a place like LSR, they do quality work and have never let me down.
If I know it's going to be wet I still take extra precautions such as wearing waterproof gaiters. I also would never tuck my trousers into my socks.
I have to say that during the last years of my military service I wore Altberg boots, and they were superb in every way, they can be picked up quite cheaply as mentioned above.