I would agree with Pitman, the Victorinox Spirit IMO is the best multitool I have.
For quality, for the feel, for the tools and how smooth they are and for their warranty.
I personally consider it the "Busse" of MTs.

Leatherman is really good also, so many models and tons of folks luv em.

SOG is very good, you can easily switch out the tools for ones that fit your needs and they have geared pliers, strongest of them all.

Gerber...is hit or miss with them, I've read more complaints/problems with them
than any of the big boys but their customer service is excellent and they have some fun designs.