nothing is better than gore-tex., in my opinion .don't know if magnum have any boot with gore tex on it . my pair use some sort of menbrane thing that work OK walkin/hiking in light rain muddy conditions. but they tend to let the cold in around the toes area after 40 ish minutes in the rain (maybe because they are old)
the bates ones are gore tex and stay dry even when riding in downpours... I also use
http://www.nikwax.com/en-gb/index.php or any other similar waterproofing products, as long they are safe on gore-tex for all my boots and shoes and rest of my outdoors equipment as well. Some of them work really well.
now gore tex get your boots hot in summer and

smelly feet