spoiler alert....
One piece is just about the greatest thing I've ever watched.
I actually just had a bad ass dream involving Zoro and Gol D. Roger fighting.
IT WAS AWESOME.
Seriously, the anime is insanely good.
how can you imagine gol d? we dont even have any idea of what his logia was. or if he even had one. as his first mate is just an incredibly powerful haki character, and for instance, WHITEBEARD is not a logia user!!! even after the whole "crack in time and space" causing tidal waves thing. hes just so strong he can break reality? obviously haki is still in the infancy if explanation in the one piece world. think its awesome that way. but at least you know its balanced. haki being accessible to all chars and overpowering all logia later on.
ie
Silvers Rayleigh used Haki to suppress the power of the Pika Pika no Mi logia, nullifying Kizaru's intangibility, and allowing him to kick away his attacks, as well as cut him with a sword, even thou he was a Pika Pika no Mi (light man) and had just recently shown that he could not be touched and he can move at the speed of light.
one the best fights that explain powers in the one piece world. imo. it shows 4 characters of varying skill levels and a short brawl and their decision choices and their abilities in a short yet dire situation. unlike bleach where someone just wins because thats how the story line goes. in one piece you can see why ppl win, and expect the outcome of battles. unless they put along enough gap in the training/ isolation of a character or they just introduced them. you usually know just how strong they are at the time, and if you dont, their is usually a display of strength skill or an acknowledgment that tey have become stronger in some way that is usually descriptive enough to gauge relation to other characters.