It's really hard for me to say, as everyone has different feet.
As an example, on the C&J 337 shoes that I have (Audley etc), the "v" in the laces has closed up a bit with wear, as the leather has softened and stretched.
With the AEs that I tried on, however, the gap was so extreme and the shoes so uncomfortable that I cannot imagine that ever happening.
AE models like the Park Ave and the Fifth Ave are uncomfortably "flat" and so I've learned that I just can't wear them.
I'm a bit the same with funny feet and in addition orthotics which push the foot up a bit. Consequently closed laced shoes are always tight, open laced much better. Also different lasts on same brands fit differently and same size in different brands fit differently.
You can get shoes stretched across the width easily if your cobbler knows their stuff and has a few stretch machines of different sizes. Make sure you don't get a cowboy but someone who knows and cares about shoes. Unfortunately not a given with a lot of shoe repairers. If shoes are stretched across width then that gives either more height or width.
It becomes tiresome after a lifetime and one tends to then just stick to a brand and last that works, irrespective of the seduction of the vast array around. Nevertheless I still try other stuff, but if I definitely NEED something I stick to tried and true.
Only browns really work well with brown toned trousers, luckily most brown shoes tones seem to work with most brown pants.
Thanks for the comments, fxh.
I have, in the past, tried some US EE and English G width shoes because, as fxh notes, the extra width can help to compensate for the lack of height in the instep. It's always a compromise, though - it's not as though the shoes fit well and there is excess space at the sides of my feet.
I tried that trick with the AE Park Avenues that I tried on (back when Peter Sheppard still stocked them, which I don't believe they do anymore) and I even tried a EEE or EEEE fit. Whilst it was tremendously wide, the top of the shoe was still very low and as soon as I tried to do up the laces it felt extremely uncomfortable. I'm sometimes willing to suffer for fashion, but I could never have worn those shoes.
I have found that, as a rule, Italian shoes tend to have higher insteps and so I have tended to purchase more from brands like Santoni, Ferragamo's Tramezza line and so on.
The Vass U-last also has quite a high instep and it fits me very well.
Finding shoes that fit a high instep is really a matter of trial and error, and of trying them on whenever possible before buying them.
I asked some questions about shoes for those with high insteps a few years back, and got a few responses - here is one of them, which may be of some assistance.