Just to add...

coming on this forum and stating, " I know a guy who..." doesn't really mean squat. Anecdotal commentary doesn't equal fact. Cycco, makes some valid points...

...unfortunately I find he tends to present them with an air of arrogance. It's off-putting.

There are many, many variables involved in this 'discussion'. I believe the OP ask about differences in frame material, not which is better.

I'm glad to see that an attempt to define material properties VS construction was made, but the Alu/Steel cheerleading gets on my nerves. Too much propaganda getting tossed about.