Better? Its all subjective and lots to say and differentiate between the types.
There is a debate about which coil tastes (and wicks) better, so you know that either way is good.
I LOVE my GP Spheroid... the single wire (not the R and NR wire of GG type RBA coils) /silica wick is simple to set up. I had trouble getting the filling right after a few refills so I just took it out and drip on the really long wick... about 8 to 10 drops anyway, and it works fine. The flavor is outstanding due to the "bell" flue-like chamber that the juice goes through before it gets to the d/t.
But folks will swear by the Genesis SS wick RBA's too...
The whole key to RBA's is getting the coil wrapped right (and the wick prepped if using SS mesh). Get your coil right and you can't miss.
RBA's DO have better flavor than conventional atomizer/carto/tank. But many many swear by DCT's.