Optimal type of wine bottle opener?
Simply look at what the vast majority of waiters at restaurants use.  Speed and convenience is their top priority.  They mainly use the hinged, "waiter's corkscrew".  It is also the choice of most wine "geeks" I know.  It's what I use.  That, and an "ah so" cork puller for very old vintages/potentially damaged corks....With any corkscrew, some care has to be taken, depending on the bottle being opened.  

(While I think this answers your question, the question may be flagged as opinion based.)