Friday’s URC final is a rematch of last year’s decider. Same two teams, same venue, which Leinster won 32-7. The more interesting fact is how the two sides got back here, because they’ve reached the same final playing almost opposite versions of rugby. Leinster want long possessions, high ball-in-play time and death by a thousand phases. The Bulls want quick strikes, a dominant set piece, and points before you’ve settled into your seat. This isn’t a contest of who’s better. It’s a contest between two models of how you win a rugby match. The Bulls, like Leinster in the European…