These strings have been a top choice for players of all types since the early '60s. The strings are made from nickel-plated steel wire wrapped around a tin-plated, hex-shaped steel core wire. Compared to "usual" gauges, these are made to deliver a fatter tone with increased tension when soloing (this just means that the strings are bigger).
Let's talk about what you want to know : compared to the standard D'addario, the Ernie Ball are cheaper and last as long (I would say a little bit longer, but maybe that's me). So this is winner for me.