if you are planning to age that barley wine for a long period of time, a bucket is probably not the best choice. It might work, but glass would definitely be a better choice for aging.
A bucket will certainly work, but if you're going for a longer fermentation, glass is better.
I recently did my Toasted Coconut Porter, glass primary then plastic bucket secondary, opposite of what I usually do, but that's because it's a hell of a lot easier to get coconut out of a bucket than it is getting it out of a carboy.
a year. i do have plastic better bottles i could use one of those for my barley wine and put my other batch in the plastic bucket thats only in the secondary for a month. I don't own glass just 1 six gal. bucket and 3 six gal. better bottles
Better bottle is probobly a better way to go, but for that long of a bulk aging, i would invest in a glass carboy. Nothing wrong with better bottles but with glass you can be certain there is no permeability.
+1 on going ahead and picking up another glass carboy if you're bulk aging for a year. It's not that much to spend when you're investing a year on a beer. I'd hate to spend a year on something and have it come out less than what I expected it to be.