I was really into brewing beer a few years ago, but let it go after seeing that the brewing of beer and the growing of the stomach as not conducive with hiking, camping, and outdoor life. I still drink beer, but when you are brewing beer the quantities you end up with are staggering. At one point I had to have well over 500 bottles of beer in boxes stacked in closets and pretty much anywhere I could hide it. Plus, I had three Corney kegs in the fridge that each had five gallons on pressure with CO2. I was giving beer away for months, which made my friends happy, but I never was able to drink all the beer I made, so I stopped doing it as much.
Cans v Bottles though I think is a matter of opinion. I nave never canned my own beer, mainly because the machinery is not cheap, and most home brewers bottle and keg, and I do both. I love Modus Hoperandi by Ska Brewing, and I've only seen it in cans. I love Coke in a can, hate it in a bottle. However, all other beer I like to drink from a bottle, it's personal preference. Cans are easier on a trip though, and after a couple hours in an ice cold river they taste amazing, and they crush for easy pack out. I have only had cans while camping, but if I were to bring beer on a hike I think I could relax my bottle policy and drink from a can. It's not like its completely different, it's just a feel thing I think. If two beers were poured into pint glasses, one from a can, and one from a bottle, no one would be able to tell you the difference.