The Best Oil and Air Filters

We already discussed oil, so the next logical discussion is oil filters. Might as well talk air filters too. Again I’m in lemming mode buying the stock Harley-Davidson® oil and air filters. I’m thinking the K&N oil filters reccomended on the Fix My Hog DVD look easy to remove with their built in 17mm nut. What oil and air filters do you use on your motorcycle and why?