I've used many cutters. I do not like the regular Xicars at all. They just don't cut very precisely. The Multi Tool is a little better, and I used that for a long time. Many friends of mine own Palios, they make a GREAT cutter. If I didn't already own a SAK, I would probably buy one of those. My SAK is a great cutter too. very precise cut and easy for me to use. I like the scissor action as opposed to the sliding action of other cutters.
It all comes down to a matter of personal preference. Do you like the feel of a cutter, or a scissor? If you like the feel of a cutter, get the Palio. If you like the scissor type go for the SAK. Both are vastly superior to the Xicar imho.
Kevin