The biggest problem with Pixar movies is the high bar they've set for themselves. Every time a new Pixar film arrives on the scene, it must be compared to the studios highest achievements, and while the studio should endeavor to keep meeting a high level of quality, the "How does it rank?" question can sometimes miss when the studio releases a film that's just sweet and lovely and funny even if it doesn't reach the dizzying highs of an Inside Out or Toy Story 2. Once you leave aside questions of how Dan Scanlon's Onward stands …