I prefer the well reasoned argument, without the politics of personality. Especially when the response(s) are simply railing against the "establishment", "big whomever", "them" and what not, as it is simply preaching to the choir. But, that's just me.
There is, to me anyway, a big difference between disparaging the "other side" and offering up well reasoned responses to their arguments. Disparaging easy targets takes no thought, usually only a simple jerk of the knee. A reasoned response takes thought and maybe even some research.
But, I gleefully enter into the fray as it is entertaining and helps me pass the time on rainy days. And, I thoroughly enjoy the train wrecks which sometimes result. I hate to miss a train wreck as some of the mods are very witty when they shut a thread down.
And, providing a bit of amusement is, of course, why I sometimes take a tack which is quite different from my firmly held beliefs.