I think I've tried most eyeliners under the sun!
Liquid ones don't seem to have enough pigment - tried stila (probably the best), Kat Von D, Charlotte Tilbury etc
Pencil liner - probably perversion by Urban Decay is best for pigmentation but good god it doesn't last more than 3-4 weeks!
Besides which they all seem to end up panda-ing my eyes by 5pm
I've now read reviews of the Marc Jacobs gel pencils and the liquid eyeliners. They're ££ but I'm happy to pay for good pigmentation and a lack of smudge! Has anyone tried these or have I missed any other decent ones?