So I'm a cigar accessory nut and have a weakness for lighters. I just took pics (not very good ones because of the lighting) of all of my dual flame lighters. The top row left to right is a Bugatti, Nibo Royal 66, and a Lotus lighter. Bottom row is a Xikar Element, Xikar XTX double and Xikar Enigma.
All are nice (with the Nibo fit and finish below the rest and the Lotus fit and finish above the rest).
I'm heavy on fuel as I light the cigar completely by toasting so I get less cigars lit from a full lighter than most. With that said, I can get about 9 cigars lit with the Xikar XTX, about 7 with the Xikar element, about 5 with the Xikar Enigma, about 4 with the Nibo. Flame height wise, I like my flame adjusted near the middle and not turned up too high.
The Lotus and Bugatti lighters are newish so no numbers on how many cigars they can light, but I have lit 5 cigars with the Lotus and still see a decent amount of fuel in the tank (my guess would be around 8-10 sticks for the Lotus)
Flame height on pics does NOT necessarily indicate how tall each lighter's flames can go or the height I usually use them at as each lighter's flame adjustment height was random.