The Hamels article isn't very good, IMO. It reads as if the writer was assigned to write a piece making the HOF case for Hamels, and so he cherry picked the numbers he needed to do that. As andyb said, the writer used counting stats when they made his case but switched to rate stats when they didn't. Comparing Cole to Sabathia is fine, but the article ignores that CC won 88 more games than Cole.
As much as I like Cole, I don't think he has a good HOF case, and I doubt he will be voted in during his 10 years of eligibility. He led the league in an important category only once in his career (WHIP in 2008). He finished in the top five in Cy Young voting only once (and that was 5th). His top 10 comparable pitchers on bbref don't include any Hall of Famers; the best of the bunch is Felix Hernandez. His scores on black ink (1!), gray ink, HOF monitor, and HOF standards are far below the numbers for other Hall of Famers.
Cole's career pitching WAR is 58, a range where there aren't many live ball era HOF pitchers. Others in that range include Mark Buehrle, Chuck Finley, and Bret Saberhagen. Buehrle is a decent comp, ahead of Cole in pitching WAR (by 2) and wins (by 51), but behind Cole in ERA, strikeouts, and WHIP. Like Cole, Buehrle has one 5tjh place Cy young finish and led the league in only one important category during his career (WHIP again). I wonder whether White Sox fans believe Buehrle should be in the Hall; he's gotten around 10% of the vote for his five years on the ballot.
Cole does deserve consideration for his postseason heroics, especially in 2008. He was bad in 2009, though; I have to wonder whether another dominant performance could have made the Phillies champs that year.