I started with KR808D-1 cartos from V4L and they convinced me that I really wanted to vape instead of smoke. That said, I have also tried Boge and SLB 510 cartos, Joye 510 attys/carts, 901 atty/carts, and dripping. Here is my take on what I have tried.
The KR cartos are the most consistent regarding vapor production from beginning to end of the carto. Vapor production is moderate, but flavor and th are ok.
510 cartos, which I really wanted to like, have not produced consistent vapor from first puff to near dry (I am careful about how far I go). Vapor production is slightly less than the KRs, flavor is ok, th is light. I actually think I like the SLB cartos slightly better than the Boge for overall vapor and flavor.
The 510 atty/carts definitely produce more vapor, better flavor, and th to me. but...wicking is inconsistent whether with the original fill, the Highping method, or the blue foam mod. I'll grant however, that I am just beginning to "experiment" with each and tweak them for better results. Nonetheless, I cannot get as many "hits" as I would prefer before experiencing dryness of the atty. A short wait, and vapor production returns. Vapor remains more consistent from start to finish of the cart.
Dripping is not especially convenient (particularly considering that I do not have a drip tip yet), but flavor/th/vapor are overall head and shoulders above any of the others imho. However, I do tend to flood the atty from time to time, adding the inconvenience of having to blow it out before continuing.
Cartomizers are simply far above everything else in overall convenience to me, but I do not find it worth the loss in flavor/vapor/th, unless the circumstances really make atty/carts or dripping unfeasable.
And way, that's just my two cents, ymmv.
But I sure do pefer vaping over smoking, no matter what!