When I say type I don't mean brand, but what type such as a guillotine, V-cut, punch, scissors, etc.
I've always thought I had to use a guillotine cutter, although with two years of practice behind me I still don't feel like I'm very good at it, which is one reason I prefer torpedo cigars...easier to cut
I've had the best luck with a little Credo cutter I picked up, it's a guillotine but works kind of like scissors. It's done me pretty well.
But recently just for kicks and giggles I picked up an inexpensive V-cutter at my local bodega and the more I use it, the more I like it. I get much more consistent cuts and haven't noticed anything as far as buildup or changes in the flavors. After reading the review here on the Xikar I'd like to get one.
That being said, I'm curious as to what your experiences have been with different types of cutters and if you have a preference.