My own.

I have found full-flapped pouches, relying on buckled closures to be resistant to the elements, be it snow, freezing rain (the worst, IMHO), dust, and mud.  Some are better than others, the wider the flaps, the better.

The old ALICE 30-rd mag pouches, are something modern mag pouch mfrs might want to consider, as such pouches offered almost complete pouch encapsulation of the mags, and almost complete protection from the elements.  They are far from perfect, but exhibit some desirable qualities.  Frankly, I'd prefer them to some modern, open-topped, bungee-type pouches.  YMMV

I dislike Velcro closures, as they are noisy, and are subject to deterioration over time, not to mention being clogged with dirt/mud in the interim.

I very much dislike any sort of elastic and/or bungee, as such materials deteriorate; in the case of sewn-in elastic, the elastic is sometimes impossible to replace.

Some of the best-made pouches I've ever bought are here: https://www.entrygear.com/list.asp?listtype=mfg&mfg=116

disclaimer: no financial interest.

The pouches that do not rely on elastic need no further comment.  Those that have elastic should have the elastic carefully cut away, and appropriate KIWIs inserted.  The pouches that rely on bungee cord for one of three methods of pouch closure can have the bungee cord replaced by user with same item, or by 550 paracord.

I don't know of better-made gear; whether it suits your particular needs is for you to say.

Never heard a word back from those who bought them saying anything else but very favorable comments  Again, YMMV.

I have suggested this (discontinued) brand of gear for a very long time.  Top-notch in my book.  YMMV.

Quite right.  Velcro is a degrading item, with use, even if industrial-grade Velcro is used.  Most gear uses standard-grade Velcro, as opposed to industrial grade., for various reasons.

Bungee cord lifespan is very much dependent on the materials used.  I have Harbor Freight bungees that last about 6 months in outdoor, light-duty conditions, and I have self-made Marine-grade (not USMC) bungees still going very strong after a year exposed to exact same conditions.  The mfrs of the Marine-grade bungee claim that the elastic is different, and the outer coverings admit less destructive sunlight to the vulnerable elastic material.  So far as I can see, their claims seem to be justified.

Now, the bungee cord used in field gear is another thing, and there is no Marine-type bungee cord available in the sizes commonly used in military field gear, as far as I know--and I have searched quite a bit.  Not to say there isn't such, but certainly not in common earth colors.  Black, maybe, but don't recall.

Let's not forget that one will have the lightest possible pouch if it is specifically tailored to one's particular magazine.  Pouches that are "fits everything" are compromises, and necessarily weigh more than a similar pouch specifically tailored to a specific magazine.  The ounces add up.  This is not to mention the revolution occurring with elastomeric material pouches being far less weighty than conventional nylon pouches.

I prefer the vast majority of my pouches to be full-flapped, with QD buckles or other silent, durable, closures.  Snaps are sorta OK, as I have the capability of re-setting failed, mil-spec snaps with same grade snaps.    I might have a single open-topped rifle pouch (with aux flap available).  Pistol mags all full-flapped, and easily accessible.  I am gradually transitioning to modern, lightweight materials. YMMV.