This discussion has been going on in the Reformed section, but it seems that Gill will only be published if a wider audience moves to get him over the top. Here are his writing on CP:
https://www.logos.com/product/8514/the-works-of-john-gill
http://spurgeon.wordpress.com/category/john-gill/ writes:
Richard Muller writes of Gill that he “stands as perhaps the most erudite [or learned] of the eighteenth-century Dissenting theologies in the tradition of the older orthodoxy” (Post-Reformation Reformed Dogmatics, 3:150). “Erudite” being the same word used by Spurgeon.
and again
But the bottom-line, Spurgeon writes, is that “the world and the church take leave to question his dogmatism, but they both bow before his erudition [learning] … For good, sound, massive, sober sense in commenting, who can excel Gill?”
More to come when I can find the time to dig up quotes. However, for a massive collection of learned writings that should be considered irrespective of one's theological perspective, please consider this.