I love using both baseball reference or fangraphs. I like the ease of access to the raw numbers that baseball reference brings to the table and I like the advanced stuff that fangraphs brings to the table. However, the thing that is kind of frustrating when debating people on things like WAR is how fangraphs and baseball reference have different ways in evaluating WAR. I know that fangraphs uses UZR to calculate WAR while baseball reference uses DRS (I believe). Which website is more reliable in their WAR calculation rather which one is the best measurement to use in conversations or in a baseball debate?