Blender video editor is extremely feature rich in terms of the keyframing effects you can do with it, the only problem being: it's slow, and it doesn't always sync audio with video even when you ask it to.

With Kdenlive, it's frustrating to add a simple block of text (you can have to create an overlay, and then configure that overlay, and place it roughly where you want), but the final rendering takes only minutes and it's stable enough to work with for larger projects.

Can't comment on Lightworks.