I have this fight with myself all the time. Should I strive for writing long, thirty page plus chapters, or should I let my chapters be short and sweet? They're both legitimate stylistic choices. It really depends on what you feel will work for your novel and what will appeal to your market.
There's really not a difference between them. Any long chapter can be broken up into smaller chapters, and smaller chapters can be compressed into longer chapters with a bit of editing and tweaking. I think longer chapters have a bit more literary bias towards them. Remember college? Remember British Literature or American Literature? Or when you were assigned to read chapters 1-5 of such and such book only to find that chapters 1-5 were half the damn book? Long chapters are associated with highbrow literature. Jane Austen did not believe in short chapters. She took you on a ride, and you were going to stay on that ride until she was good and ready to stop.
If you have a lot of time to spare, long chapters are fun. You can lie down or sit in your favorite chair (mine is my blue papasan) and just read and read and read and not stop. Or, if you're someone who doesn't mind stopping in the middle of a chapter to go do something else like cook dinner or take care of your dogs/cats/children, long chapters are also not much of a problem. You can just put the book down - dog eared, bookmarked, or my personal favorite, the spine-breaker - and come back to it later. No harm, no foul.
However, if you didn't like reading chapters 1-5 in college and found your attention wandering to other things - parties, food, the fifteen hundred other pages of text you needed to read for tomorrow's classes - or if you don't like leaving off in the middle of a chapter, then shorter chapters might be your thing. Far from breaking up the flow of the writing, shorter chapters allow for breathing room and for you to follow at your own pace. You aren't required to carve out a few hours to read one chapter; you can read for about half an hour or so and still get through a sizable chunk of story.
As a writer, shorter chapter can also allow you to get haste across to your readers. Short, quick, chapters that change point of view can give a physical representation to the emotions of your story. You don't want to confuse your readers with your word choice, but you can let them know that these particular scenes right here are hectic and confusing to the characters by pushing the pace and switching your characters around, as long as you make it obvious who's speaking or doing the actions.
All in all, it's really your decision, but just keep in mind your audience. If you are looking to be like John Grisham, you might want to use shorter chapters. If you are looking to be the next Jane Austen, then longer chapters are for you. If you're unsure, talk to friends, beta readers, or if you're lucky, your editor.