well, given the time of year, hunting. absolutely love the world of hunting.
and not the taking of the animal - that is just the icing (and food for my deep freezer).
it's the walking in the bush where 90% of the year, no one else goes (we don't use tree stands), it's the comraderie of camp, it's the getting away from technology and the city life, it's the special meals we have once a year.
and I'm taking my youngest boy this year so both boys will be going and i'll get to teach them about the forest, which is definitely a skillset that too many children don't learn these days (ie. how to build a fire, how to recognize trees, orienteering, wildlife - ie. last year, my son and I were stopped for a snack and a fox just walked by - you don't see that every day in the city
Play guitar, write music, study (i know, craziness), surf the web, drive, work on cars, ride dirtbikes and ATVs, shoot guns, and drink lots of alcohol (not while doing doing the other activities, of course )
Since my life is busy right now, my current favorite thing to do is nothing at all. If I could do anything all day today (rather than go to work), I would go take a relaxing bath and then go back to sleep, and not wake up for 15 hours.