Well, I don't own the Victorinox and SOG you mentioned, but the Charge TTi is one of my favourite multitools. Compact, light (for a multitool of this size) and comfortable to use. I like having the blades and saw on the outside of the tool and the pliers are good enough for what I use it for. I bought a bit kit and bit extender for it. When I carry it, it's normally on the belt, but can be easily put in the pocket too with the pocket clip.
I've got a Victorinox SwissTool, which is a great quality multitool, though larger and heavier than the Charge TTi. I expect the Spirit being of the same great quality, like all Victorinox products actually. Although you don't get the convenience of having one hand opening blades, the tools are on the outside though. For the SwissTool that's no problem for me, since I use that one for camping only and I then carry a fixed blade anyway.
Never handled a SOG multitool yet, but when the choice would be between the Leatherman and the Victorinox, my opinion is that it's mostly a matter of preference and taste.