User Review: Brunton Optimus Nova
I've had this stove for around three years now and although I also have an MSR DragonFly, I prefer the Nova... although they're very close.
The things I like about the Nova (over the DragonFly) is the aluminum pump which is pretty indestructible and its lack of noise. The "legs" are a lot sturdier over the DragonFly's wire "legs" as well, but they're not as wide.
But with that being said, you really can't go wrong with either stove. Just grab the one on sale ! :)