I like the larger handles on the Leatherman Supertool 300, but it is on the heavy side.
A lighter version is the Rebar, which is a good choice to carry hiking.
I use my Swiss army knife trekker a good bit, and also the Swiss champ or whatever it was called.
I always carry a mini tool also. Great for fingernails if nothing else. Leatherman style CS or Swiss army night manager mini champ or whatever it is called. Both are tiny in the pocket, so are always with you.
For a survival knife, there are several Schrade survival knives that give a lot of function for the money. They are on the heavy side though.
Heavy
Amazon.com : Schrade SCHF9 12.1in High Carbon Steel Fixed Blade Knife with 6.4in Kukri Point Blade and TPE Handle for Outdoor Survival, Camping and Bushcraft : Hunting Fixed Blade Knives : Sports & Outdoors
www.amazon.com
Medium heavy
Schrade SCHF38 Frontier 11.2in High Carbon Steel Full Tang Fixed Blade Knife with 5.8in Drop Point and TPE Handle for Outdoor Survival, Camping and Bushcraft , Black : Sports & Outdoors
www.amazon.com
I like their rubber grips.
Also have some with micarta grips.
If you want something with a guy's name on it, the Matt Graham Jungle Primitive knife is also good.
It has a unique sheath that you will either love or hate.
It can be used to drill fireboards.
Basically, watch Matt graham use it in one of his shows. It is very capable, and made by Condor, who makes good quality knives.
Amazon.com : Condor Tool & Knife, Primitive Bush Knife, 8in Blade, Wood Handle with Sheath : Sports & Outdoors
www.amazon.com
For sharpening, I carry a Lansky Croc stick.