But yeah, they have a 6-7 year difference in experience. Then again, Hiro's had a headstart because he's had his brother to look up to (and most likely professional links/relationships/advantages, which if I were him I'd use too).
Comparing 20 year old Taka (Kanjou Effect) with 20 year old Hiro (right now) shows Taka had a better skill at that age, but at the same time I think Hiro's doing really great as well. He's improved loads in the past two years and I can only imagine what he's going to grow up being.
In terms of music, I think I prefer MFS, despite having been an OOR fan for so long. OOR is absolutely great live, but I think I prefer the liveliness of MFS' music over the mainstream side of OOR? Both are great though.
Also don't forget OOR's pretty much always been backed by A-sketch/Amuse. MFS is just on a small indie label.
Both brothers combine English and Japanese and I think Hiro's the one who even uses more in English than Taka does. Also, are you sure you mean Hiro's voice isn't as annoying? They sound very similar to me, but even then Taka's voice is a lot more controlled than Hiro's is.
One Ok Rock has about 6-7 more years of experience as a band than My first story and it really shows when you listen to there albums one after another. My first Story is decent though and I see them only getting better and better as time goes on but at this point in time there's really no contest when the experience gap is this big.
rikuri reacted to Kaye in [Band Battle] ONE OK ROCK vs. MY FIRST STORY