I think you are approaching Khan in the wrong way VINH. It's hammy and over the top--and that's what's great about it. Shakespear is hammy and over the top, too, and that's what is enjoyable about it a lot of the time, you can relish in the pure cartoonish stylization of it. Khan is a masterpiece, and a big part of that is the fact that you have Khan and Kirk as these two really big personalities, the film is almost like a sophisticated comic book.
I have to agree, I never heard of ANYONE disliking WOK while liking the others, and certainly haven't heard of anyone liking ST V more than any other film, least of all WOK. There's a reason why critics, audiences, and fans alike have been hailing the film for 25 years as a great film, let alone the best in the series. "I'm not crazy, EVERYONE ELSE is crazy!!" But to each his own. I find this sort of view incredibly bizarre--I have to wonder, if you think ST V is the second-best in the original series and WOK among the worst, what exactly are you looking for in a ST film? I'm not being rhetorical here, I'm just curious as this viewpoint is the inverse of almost every other person on the planet that has seen the films.