Lots of fine brands of boots suggested. But it's all about how the boots fit YOU! For example, Salomon 4d that many suggest here, just don't fit my feet , not enough volume. I need a wide toe box and snug heel etc etc. You may be opposite. I love , just love real German made meindel boots. But another poster here wouldn't take free ones. And on and on...there is no single best for even one specific activity. Have to buy and try in the house. Return what doesn't work, as near as you can tell, cuz you really can't 100% know until you get some mountain time in them.
Lowas ,meindel, asolo, kennetrek, han wags, schnees, and many other very well made boots out there.
And if you have a gore Tex boot leak, contact gore Tex themselves. They often stand behind boots that the boot maker won't .