For making a concise, meaningful point on the SSPX crisis... it's Wessex.
My general impression of good writers, in no special order, are:
PereJoseph (always learn something from him).
Telephorus (concise, slam to the point, posts).
Matthew (good organizer of topics and thoughts).
Catholicam (Great writer & fighter mainly on IA).
Magdalena (Thoughtful, interesting posts).
Sean Johnson (Astute, determined writer).
John Grace (Makes good, brief points).
Neil (Good writer, deep analysis).
Marlelar (Brief, but pertinent post).
I surely missed many others.
God bless all the CI members who are posting and fighting for the one true Faith!