ExDrag, I believe the more important questions are what you want your jacket to look like and how much sewing ability you bring to the task. A jacket by any other name will keep you just as warm. My understanding is that the modern trend is towards a plainer jacket, with no special cuffs at all and the kind of pocket flaps most suit jackets have. Without question, that is the easiest jacket conversion to do, because it requires the least work. On the other hand, if you are up to it, cutting and sewing the military cuffs of the Braemar is not so difficult, but I think they are a little incongruous on a herringbone, or even a Donegal tweed jacket. The Bucket / Gauntlet cuffs of the Argyle are the trickiest, but they are not so very tricky and they offer the advantage of being added on all around, thus giving you a handy way to lengthen the sleeves if necessary.

My post title refers to what I see as the current state of jacket design: You select a fabric, then you select a pocket style, then a cuff style. In fact, you can even select the number of buttons and vents. Whatever combination of variables you concoct, someone else has done it and given it a name, maybe ( as pointed out above) the same name as some slightly different arrangement.

You didn't ask, but I started telling you and I will continue. If your jacket has much of a pattern at all, the ornamentation of bucket cuffs and those cute little rows of stitching will just busify it unnecessarily, in my cantankerous opinion. The military cuffs will look funny on a patterned jacket, too, unless you opt to make them a solid color.

May I suggest that you poke around and see what the Prince of Wales (The Duke of Rothesay) wears in photos.
And do let us see what you come up with. Thanks