Pro tip for reviewing a paper you've reviewed before, especially at a different journal (when there are no author replies): use a pdf comparison tool to see what the authors have changed. My favorite (and free) one is Draftable
If you're reviewing a paper for the second+ time, Draftable is a lifesaver: . It allows you to easily and quickly see changes made to a manuscript. I've tweeted about this tool before, but worth re-iterating.
there are probably a few but here's one