Personally, i'd recommend to not rate the BPoHC players until we have the complete game with the 12 (!) characters. But we have at least 3 games with 3 weeks to go, maybe Jynx will make some progress. Also, (later) i want to roast other fangames, like ido's series. Can't wait for MPP and then RSS right after that, i'm expecting a huge contrast.
But now back to business
Yabusame 8/10
Better for survival in general and i appear to get consistently better scores with xim. I argue that in a game with the mechanics of Len'en, the proficiency of a bomb is not only dependent on raw damage, but also, or even mainly, on the duration, as you can squeeze dense patterns for score and lives.
Tsubakura 7/10
Usable if you know how to proceed. The perforating laser is pretty good for multiple enemy formations where they move into groups, ones would block others outside of Yabusame's attacks, Tsubakura can wreck stages, preventing multiple enemies from even shooting. Problem is that to use the full potential, you need to memorize the stages (enemies mostly, not actual danmaku). Bomb is short, but high damage, can get out of pesky boss patters just in case a problem arises.