I use both as well. You get more product with the pencil liners for sure but they're a bit drier in texture. Lately I've been buying cremesticks because I don't have to worry about sharpening them and I can use them for B2M. The only down side is that I feel like I go through them super fast!
My favorite colors for a more toned down lip:
Pencils - Hodgepodge, Hover, Dervish
Cremesticks - Creamola, Pink Treat, Amber Ember
Brighter Lips:
Pencils - Brick, Mahogany, Half Red
Cremesticks - Plum Soft, Cranapple