I used Chrome for over a year and just recently went back to Opera. I have open bug reports for various bookmark problems in Chrome that have been ignored by the Chrome developers for several versions now. The chrome bookmarks code (and syncing) just needs to be thrown out and rewritten. It's a steaming pile of dung. I've even tried deleting them wholesale and letting chrome resync the whole bunch - it will only sync 100 per day as some sort of throttling mechanism, so it took a month for all of them to synchronize.

I do run into an occasional problem with Opera, for example, in Google docs, you can't upload a document. But for me, bookmarks are very important (I have over 5 thousand of them) and chrome can't handle them correctly.