- transpose the re-rewriting I attempted to do in Views' fields into a new node--review--teaser.tpl.php
theme_preprocess_node()in template.php to add theme hook suggestion for the Teaser view mode; otherwise node--review.tpl.php is always used
That's it. This is a good example where view modes make your life easier.
After deploying this home-made Star Rating system, the client had only this to say: «Looks perfect!»