Awesome comparison for those confused poor souls like me

[ddogu]

This makes it very easy to differentiate between Spartan, Camper, Climber and Huntsman. FYI, Ranger has everything the Huntsman has, plus a metal file and some bonus on the back side.

[Thunderpants]

Spartan - need one
Tinker - you'll regret it when she wants to open a bottle of wine
Climber - need one
Huntsman - adds a silly saw! Forget it.
Fisherman - Definitely need one, for removing staples and eating chips when they forget to give you a wooden fork at the chip shop.
Deluxe Tinker - Worth considering if you are a recreational smoker who doesn't like burning his fingers
Ranger - Would be great without the toy saw
Craftsman - Awesome and rare! But has ruined many a promising evening because of its lack of a corkscrew
Handyman - Get in there.
Swisschamp - You're in trouble now. You'll realise it's too enormous to carry and end up trying all the others, until you realise the Climber is the one you should have got in the first place.
Swisschamp XLT - therapy is cheaper, and probably necessary if you're thinking of buying one.

[Steinar]

On the other hand we have members who EDC the XAVT. (And my hands don't like the Climber, the scissors create a couple of really annoying hotspots. The Spartan, on the other hand, is nice and friendly. Frankly, I think a Spartan and a 58 mm often is a better combo than a bigger SAK. (I often carry a bigger SAK for fun, though.  (The Huntsman Lite is an underappreciated knife, I say.)))

[Don Pablo]

Bu-bu-bu-but, the HOOK!

[Steinar]

You don't EDC a longshoreman's hook?! 

[ChopperCharles]

Spartan - need one
Tinker - you'll regret it when she wants to open a bottle of wine
Climber - need one
Huntsman - adds a silly saw! Forget it.
Fisherman - Definitely need one, for removing staples and eating chips when they forget to give you a wooden fork at the chip shop.
Deluxe Tinker - Worth considering if you are a recreational smoker who doesn't like burning his fingers
Ranger - Would be great without the toy saw
Craftsman - Awesome and rare! But has ruined many a promising evening because of its lack of a corkscrew
Handyman - Get in there.
Swisschamp - You're in trouble now. You'll realise it's too enormous to carry and end up trying all the others, until you realise the Climber is the one you should have got in the first place.
Swisschamp XLT - therapy is cheaper, and probably necessary if you're thinking of buying one.

You forgot a few:

Troubleshooter: Everything you need for every day carry, nothing you don't. Highlights: File, pliers, scissors, blade, openers, hook, awl, scraper, phillips driver.

Champion Plus: Almost everything you need... plus a magnifier which is actually surprisingly useful. The wood saw and corkscrew make this more of a camping knife than an EDC to me. The lack of pliers is the biggest downfall.

Swisschamp. It's a Champion Plus... plus pliers. Absolutely everything you need for camping or EDC. It's a little wide though. Would be FAR better without the fish scaler. Strangely... the width is easy to get used to. Still, I prefer the Troubleshooter for EDC. It actually fits in most of my jeans' coin/watch pocket. Neither champion or swisschamp do. (For my skinny jeans only a Wenger will fit -- 4 layers or less).

Charles.

[ddogu]

Spartan - need one
Tinker - you'll regret it when she wants to open a bottle of wine
Climber - need one
Huntsman - adds a silly saw! Forget it.
Fisherman - Definitely need one, for removing staples and eating chips when they forget to give you a wooden fork at the chip shop.
Deluxe Tinker - Worth considering if you are a recreational smoker who doesn't like burning his fingers
Ranger - Would be great without the toy saw
Craftsman - Awesome and rare! But has ruined many a promising evening because of its lack of a corkscrew
Handyman - Get in there.
Swisschamp - You're in trouble now. You'll realise it's too enormous to carry and end up trying all the others, until you realise the Climber is the one you should have got in the first place.
Swisschamp XLT - therapy is cheaper, and probably necessary if you're thinking of buying one.