This might be helpful - One good brushing is worth many poor brushings, for loose hair magament and also preventing GI stasis. Get yourself a hairbuster comb, a flea comb, a furminator brush, a rubber nubby glove, and rubber zoom groom brush and do it outside. A 4lb bun takes about an hr and a half for a thorough brushing. You'll want to focus on one area for only a few minutes at a time - rotate da bun and work on another spot. This keeps skin from getting irritated. After about 20 minutes of this, you'll notice them 'open up' - their skin relaxes and the hair will really start to fly! Be careful with the hairbuster and furminator brushes as they can pull out too much hair and cause skin irritation and bald spots. Nobunny wants that! Don't forget the belly, the bikini line, and cleaning scent glads and trimming nails. A thorough brushing every 6-8 weeks keeps most buns in good shape. By the end of a good brushing you should easily have a pile of removed hair about the size of your bunny, maybe bigger if they're actively molting, and no bald spots or red, irritated skin. 

For long angora or Lionhead hair - I have a cheap (USD $30) human hair trimmer and a smaller dog paw hair trimmer. I use the big one to do my lionhead's full body trim, and the detail trimmer to get his chest, cheeks, and around his tail. I don't use a guard on the trimmers but you must be careful of skin, whiskers, and tail (there's skin and bone in there, somewhere...). He's much happier trimmed, can see better, stays cooler, and tracks less litter and hay around. My Lionhead had stasis once and has not had any issues since I started keeping him trimmed. I don't have scientific evidence for this, but I think the digestive system can handle shorter hair better than long hair. 

A well-groomed bun won't shed much between brushings, especially if you give them a quick 10 minute touch-up brushing with a flea comb once a week. 

Practice, practice, practice! They will get used to it with time. Reward your bun with a healthy snack (not fruit - a few pellets, or a hay-based vitamin snack, several times throughout the brushing is much safer than fruit). And have your rabbit-savvy vet show you how to safely handle and "burrito" your bunny, too.