This is a REALLY hard question, as I am a big lancero lover. But I'll keep the list to just 3 (suck it, Craig!). I should also note that I've not yet had the BOTL lancero or an Opus X lancero, both of which I'm sure I'll love.
Casa Fuente Lancero -- one of my favorite cigars, period
Tatuaje Especiales -- wonderful cereal flavors, reminds me a lot of a CC
Padilla 1932 Lancero -- I can think of 6 or so other lanceros that I like more than this one. So why is it in the Top 3? Consistency and value. These are always yummy, and very cost-effective (much like the Oliva V, I just find these to be a bit more complex).