Polish is one of the most important aspects of a game to me. Screen tearing, texture pop-in, frame dips, etc. all take you out of the game experience, and they are all preventable given enough development time.
This is one of the reasons that I love Uncharted so much. It's high level of polish makes the game a constantly enjoyable experience throughout. However, screen tearing was als my primary complaint while playing Heavenly Sword.
That's one of the main things I love about Nintendo's work, the QC. I can't think of a single Nintendo game that has had frame dips, texture pop-in, etc.







