Yes, more lawyers use Macs than PCs. This answer is backed by research done by attorneyatwork.com and also lawpracticetoday.org. To summarise their research is that many lawyers find macs to be more appealing and performance-oriented as compared to Pc. As a matter of fact, our guide on the best laptop for law school students does not feature macs only. But I think it might be a matter of personal preference. So according to this Macs are better than PCs since they are used by many people who practice law.