You could rely on aggregators or just go to publisher sites, such as Dark Horse, Top Shelf, Fantagraphics, First Second, etc., who frequently post or link you to interviews with or essays by the creators themselves. It cuts out the middle man. Of course, if it's the publisher's site then it will spin everything positively but the point is, you already know that going in. You don't have to parse a reviewer's rhetoric to figure out their biases, if any. You can get right to the title's premise and probably examples of the art.