The Alinghi and the S557 are my favorite Wengers. Both have a very useful tool lineup.
Both have a locking blade and screwdriver. Both have pliers.
The mini-screwdriver from the Vics will fit in the Wenger corkscrew btw.
The Alinghi is a bit more specialized in that it includes a marlinspike and a long screwdriver
but leaves out such ordinary things as a can opener and scissors.
The marlinspike on the Alinghi is really handy as a poking tool and a ruler, as well as for untangling stuff.
The 73 also leaves out the can opener, and includes a hooked harvester-type blade.
The 75 is a more general-purpose set-up.
The 174 has a partly-serrated blade, a corkscrew instead of a Phillips,
and adds a standard 1/4" bit driver like the one on the WengerGrip.
The high cost of the Alinghi is partly offset by the inclusion of a sheath in the purchase price.
The sheath is included with the Alinghi and the Touring 174, but not any of the other NewRangers.
Another very handy NewRanger is the 172. This is a scissors-based NewRanger.
I think the only "locking" screwdriver is on vic OHT.
The Vic Fireman has the same liner-locking screwdriver. It is a 7mm screwdriver,
not a 5mm like the bottle openers on 84s, 91s, and slide-lock 111s.
The Rangers have a slightly sturdier screwdriver than the 85mms like the S557.
Both lock with downward pressure such as when using it as a screwdriver, and release automatically.
Are the Rangers too big for pocket carry? Not really. It helps to have big pockets though.
The pliers are very good needlenose pliers, and like many needlenose pliers, they don't open very far.
If you need needlenose pliers that open further, but are heftier than the Vic pliers, consider an
Aitor Alligator.
The SwissGrip IS huge and bulky. Those pliers don't fold into the tool. Sheaths are somewhat unobtainium
(though I saw one Swissgrip posted for sale that has one). It is a really sturdy tool, but a bit of a beast for EDC.
The bit driver is nice though.