The "best" depends on what you're after...size, weight, capacity, shootability, finish, value, etc, etc.
I'd say look at the Ruger LCP, Sig P238, Bersa Thunder, and Kahr P380. I chose those 4 guns for varying reasons, but I think one of them will ultimately offer what you're after. The prices differ a bit from one to the next, but they're all quality guns at their respective price points in my opinion. Advantage to the Ruger or Kahr if a micro featherweight is what you're after. The Sig and the Bersa are a bit more weighty (and shootable).
I don't own any carry gun smaller than 9mm. Just personal preference. Something about paying 50% more per round for an anemic 9mm (380acp) just bugs me. Not sure whether that's cheapness or pragmatism. YMMV.