You'd probably lose.
The thing they get you on with BitTorrent isn't the download part, it's the seeding part, where you're distributing the copyrighted content to other downloaders.
You could turn off seeding, but that'll get you banned from a lot of torrent sites, and it's not a technical distinction I'd want to have to explain in court to lay people.
pay full price for the online offering (conducting the transaction in a browser) and then just download the content from BitTorrent.
I would happily defend that practice in front of a jury of my peers.