I'd argue that using .each is a better choice in both of the most common cases of people wanting to learn ruby. The novice who's learning his first language wil

I'd argue that using .each is a better choice in both of the most common cases of people wanting to learn ruby. The novice who's learning his first language will probably benefit by being taught early what it's considered the correct way to do a task. A novice can learn other "styles" later, but as a teacher you want to plant the seed in the students brain that .each is the shiznitz. In contrast an experienced programmer will probably come with for loops deeply lodged in his brain. Therefore it's also beneficial to challenge that prelearned behavior to establish the use of patters that are considered "more correct". A novice needs to learn the most practical and correct way to do things. An experienced developer needs to learn to transpose his current knowledge to a new syntax. Both benefit from being taught the most common or correct syntaxes and patterns.