In recent years, I've used tubes made in France, Germany, Japan, Taiwan, and Korea. I've never found one brand to be much worse than any other. Tubes splitting open are often caused when the tube pinches against the rim, either from a pot hole "snake bite" or not properly seating the tire inside the rim. Punctures on the rim side of the tube can be caused by debris that got inside the tire when installing or by spoke ends (especially if you inflate your tires to a lot more than 100 psi). Torn off valve stems are often caused by improper pumping technique, especially with a hand pump.