YES, Apple owns in the laptop market FOR SURE. I don't know what I'd do without my little iBook.
Apple's notebooks have probably the most superior battery life of any notebook out there. I recently bought an original, Apple-branded charger to replace the one that broke back in early May. What a difference! Both of my batteries went from less than an hour battery life, to over 4 hours! and the batteries are over 4 years old! That's simply impressive.
One thing with notebooks is that people don't fully drain the battery before plugging in the AC adapter. I "callibrate" every time I use this computer, by letting the battery drain until the computer goes to sleep, before plugging it in. Never fails.
Apple pretty much owns the market in everything, but of course, there's a hefty price tag that comes with it. Bang for your buck though. My 1995 Power Mac 9500 is chugging along beautifully.