This masterpiece out of Breendonk is considered the benchmark for this style. I suppose the reason it is worthy of it's own style distinction is that it is so good it has many brewers copying it. Some, such Lucifer, not only simulate the style but even the demonic intent of the name.

Belgian golden ale is characterised by a very high ABV, hovering around 9%. It bares a resemblance to the abbey style tripel but it has several significant differences. Tripels are frequently cloudy where Duvel is quite clear (although it is bottle conditioned). It is a touch paler in color than Westmalle tripel and has a less fluffy, dense head. It also has a cleaner taste, revealing malt and hops more than fruity esters or the character of yeast.

Amoung those who have flattered Duvel by producing similar beers are De Kluis with Hoegaarden Grand Cru (which, by the way, is really wonderful), Huyghe with Delerium Trements, Riva with Straffe Hendrick, the list goes on. I wish I had a dime for every time I tried a new beer and said "Oh, Duvel" after the first sip.