Too much contradiction in your post, you say B/E body folks don't have attitudes....then go and say A body guys have the same attitude B/E body guys have.....you like to soap box a lot, I see this often in your posts, you have a slight complex with 318 vs 360/340.its okay though....no one is trying to judge you.
in regards to the issue you brought up....I don't care what cid motor anyone has, they are all cool mopar mills imo.... but when someone asks me to build for them, I only care to give them the best bang for their buck, period, and if more cubes cost the same and give the result the customer is looking for....that's what I'm doing.