couldn't tell you if this is the best addon out there, because I never tried anything else. in addition to tracking the CP's, it tracks all kind of timers aswell (SnD, Rupture, HfB etc..)
I use that one, I like the fact you can colour and size the circles for each point separately - I have small red circles for the first three, then orange, then a bigger green one so I'm less likely to miss the fact I'm on 5cp. I'm far too simple-minded to be reading things as complicated as numbers while I fail to move out of the fire.