If you like your corkscrew and it opens your wine that's good enough.

But... now let me exercise my right to rant about which types of screws are good and which stink.

I think the finest corkscrew design of all time is what's known as the "waiter's corkscrew".  This is a small bar with a screw that folds out mid-handle and has a brace on on end for leverage in pulling out a cork and usually a foil cutter at the opposite end.  Small, sturdy, fast, effective.  There's really nothing to break unless shoddy materials are used.  In the picture shown these are the far left of the photo, and the silver one on the end, made by Phoenixware, is my all time favorite because it's weight, balance, and strength makes opening bottles such a breeze.  I just wish it had a foil cutter built in.

A distant second on my list is what's known as the "butler's friend".  It's a two prong design which shoves down opposite sides of the cork and then twists it out completely intact.  I was doubtful this would work but it really does.  And the design allows you to put the same cork back in if you want.  A neat trick.  Apparently butlers could use it to siphen off a tiny amount of wine from really high end bottles and then recork them before the owner knew what had happened.  So this one is fine, but of course there is no foil cutter, and those two prongs are a potential hazard - you could poke something you don't want.  I'll add that this style is super hard to find.  Really very few people use them.

Near the end of the list in my opinion is the "wing" screw, and what amazes me about this is it's probably the most popular screw of all time.  3/4 of the screws you find for sale now in stores are variations on the wing.  I can understand it.  Any idiot can brace it on the bottle neck, turn the crank to drill in the cork, and then squeeze the two wings to decork.  But come on, how wimpy can your corkscrew get?  Plus it's bulky - easily one of the largest desings, and it often has goofy faces or figurines built into the design, which is annoying.  And many of these have the awger style of drill instead of a real screw and those awgers make a real mess ripping at a cork.

The bottom is simply the straight pull design.  A screw on a handle.  They work but with a lot of effort.  Some look very cool like in the photo right. 

But almost no one uses these anymore.  Why use brute strength when you can have leverage?  It's like dead-lifting a heavy box instead of putting it on wheels easily available.

Finally, I want to talk about crap.  The last screw on the right is waiter's style and I had high hopes for it.  It was $15 and from the usually good OXO brand, "titanium" sub-band.  On the outside you see sharp polished metal.  But you'll find when you open it up it has odd proportions and fold in features, and the ENTIRE INSIDE IS PLASTIC.  What?  This is a "titanium" model and yet the only metal is the screw and the outer case decoration.  Black plastic anchors it all together.  My God.  If I hadn't bought it out of state I might actually have brought it back to the store.  Stupid stupid design.

So I say when you shop for your screw - keep it simple, keep it indestructible, get some leverage to help you, and don't fall for enormous, or flashy, or table top behemoths.   It's about the wine isn't it, not the toy you use to get to it.