A gunsmith recently recommended that any o/u I buy should have a name that begins with "B" - Browning, Beretta, or Benelli.
Are there any other brands out there that are durable, reliable, and smacking of similar quality?
Not to sound like a broken record but...
The use of the gun determines alot on how reliable it will be in the long run.
For clay games, serious shooters shoot ammunition like somebody else is paying for it. Browning and Berettas are considered good, reliable entry level guns (I have no experience with Benelli).
In the early 1990's I bought a mid-1980 vintage skeet grade Citori. I had it tubed and shot competitive skeet for a number of years. I did well with the gun with no reliability problems, I don't shoot competitively much any more but I do bring the gun out for most of forays on the skeet field these days.
But, if the gun is to be used for a few days of hunting and a few rounds on the clay target field, their are less pricy shotguns that will serve you well.
As far as new guns, I do not know what is on the market today, but for out of production guns, Ruger Red Lalel, Remington, and Winchester shotguns. The Mossberg O/U may fit the light weight use bill as they do have a good reputation in the shotgun market.
These days, Browning shotguns are made by Miroku. I'd expect if another brand bought Miroku guns they would be on par with the Brownings. They may cost as much as well.
My 2 cents worth.