I'm seeing lots of posts with people asking "is it a weed or not?" and thinking it would be fun to find out which plants you like that others consider a weed.
My absolute favourites:
1. lesser celandine
3. Green alkanet
4. Herb Robert
I don't have any of no. 3, which may be why I don't mind it, and I'm happy to pull out the Herb Robert when it's in the wrong place but it quite usefully lines the edges of my garden when nothing else is there. And great for finches.