[ALMACK]

I have one of each.
Pros and cons both ways.
Since I cannot quantify the gas savings results versus both types of trailers, I have observed a few things.

The v nose does not allow mounting a generator up front, and the extra space inside from a v nose in minimal.
I understand some v noses can be ordered with an extra 2 foot length in the tongue. That would help.
Without the extra tongue length, the weight distrubution bars are a pain to mount on the frame rails.

If a truck has a topper, I believe it might be more beneficial than a v nose. No data to prove that tho.

My gas crew cab gets 8.5 mpg pulling a loaded enclosed and 9.5 mpg not towing anything. So, not much room there to quantify any results.

Just my observations.