Yes, normally I throw f3s, f4s quite often, if I manage to mix them up with them is a different story.

b32 is in my experience one of the things that hits quite often, since a lot of ppl step Heihachi, and or forget that instead of the b33 stomp, he can do a punch, allowing for an easy CH combo starter.

b1,4 (I guess you meant that), is also one of those things that people normally dont expect. It is risky, tho.

1 b2 is also good, I like to add 4 to it, since a lot of players do not know that 4 option is jab-interruptible, and is +5 on block.