The "leakys" (MacArthur and Co.) to be honest remind me a lot of the progressives, in that both seem to eliminate core portions of what would to Ryrie et. all would be the distinctives of the system. Some stuff I've read by MacArthur or the big names in DTS progressivism just seems like an attempt to take the eschatology of the system and jam it onto covenant theology. Not all of it, but some. This is especially true of the monergist guys. Classicals, in the sense of having the exact beliefs of Darby and Schofield, I don't think exist any longer. Or if they do, are a tiny fringe scattered across the American landscape. Which as far as I'm concerned is good, some of Schofield's original study bible notes reflected total heresy.
I'd subdivide it, if I were being quick as possible, into "traditionalists" and "progressives", folding the leaky's into the progressives and defining trads largely by the views of Ryrie, Walvoord and Ironside. The ultras (Mid-acts, no baptism etc) would be closer to trads on most things but are an outlier. Ironside himself called the ultras (Bullingerites) unsaved for denying things like the ordinances.
Typically the progressives will have a view of law and gospel that bears a lot of similarities to the NCT position, as in Gary Long's work on the subject, and will ultimately be accused by the trads of being "Lordship salvation men". MacArthur is obviously the classic example for the aforementioned "Gospel according to Jesus".
The ultras, and many of the trads, will either a) fully accept the Zane Hodges, GES "free grace" position (what a blasphemous name for it btw) or, like Ryrie and Walvoord, have a via media on soteriology. Ryrie sometimes sounded Reformed, sometimes Hodges-like. I've read that his main work touching on soteriology could be described as almost Amyraldian. A lot of this comes from the necessity of creating distinctions in salvation (the means of testing mankind) in the New Covenant and Sinaitic dispensations. Some are more committed to this, some less, with the GES position reflecting an extreme (men are "saved" in a totally different way post-resurrection than they were before, which is a position Schofield and Darby shared, but not in quite the same way as Hodges.)