To assist people with finding fine wines and staying away from bad wines, the wine society in general uses a 100 point scale.  Let me point out though: the scale is only a rough litmus test.  Everyone's palate is different.  Gary Varnerchuk may rate a wine 90 and me 88 and Robert Parker may rate the same wine 85.  It is up to you to decide what the wine is or isn't.  Gary Varnerchuk likes vegetable flavors in his wines more than fruit flavors.  I prefer more fruit in mine.  As you read and taste, you'll learn whether your palate is similar to mine, or to Gary's, or to whomever's, allowing you to discern wine scores more accurately.

To see the scale in detail, go here...