The polemic between AMLO and El Universal journalist Carlos Loret de Mola, which started with a column by the latter that pointed out alleged inconsistencies in AMLO's rhetoric vs. reality, is worth a look.
Here's a page set up by El Universal that presents AMLO's reply to Loret de Mola, in the form his spokesperson César Yáñez, and a reply again by Loret de Mola, in a side-by-side format.
Who is most convincing? You be the judge.