4B - the answer to short range rushdowns
4A - safe, fast high horizontal, and good transition to mist
4KB - a safer mid than 3B or 33B on block, also rings out, good damage, sets up oki
2KB BE - because, you know
3B - solid launcher
33B - solid launcher, hits grounded, and you can delay a second B if you want, which will catch some people
66A+B - strong mid, deceptively long range, hits grounded, can be cancelled for mind game, safe on block
6B series - solid, deceptive pokes
AA and BB - obvious - both first hits can be cancelled (I haven't really come up for much of a use for this fact yet)
236B - followup to launchers, BE sets up CE, can be done from crouch
Honourable mentions
WS A
FC 1BB
CE
And finally, 11BA6 - when at range, I find a lot of people will walk into the second hit after the first one whiffs for a CH. If so, you get huge combos like MST B BE, B+K, 236 CE. It also safe on block.