We use the default view in Bitbucket. My biggest gripes are: 1) Its diffing algorithm is mediocre and tends to interleave changes a few lines at a time instea

We use the default view in Bitbucket. My biggest gripes are: 1) Its diffing algorithm is mediocre and tends to interleave changes a few lines at a time instead of showing blocks replaced, which can make the code very difficult to read through (you can open up a side-by-side diff, which is more legible, but is available only in a modal and has to be closed in order to leave comments - awful UX) 2) Any new commit added to the pull request hides all previous comments even on unaffected files - they can still be found in the "activity" tab but without full file context. 3) Bitbucket collapses code more than N lines away from changed lines (good) but only expands 10 lines at a time if you want more context... slowly (awful if you need to get through 300 lines to find out which class this method belongs to).