TD bet check bet

[euri10]

I just remarked from analyzing my play in the last months that pattern A was a winning "strategy" compared to pattern B and it surprised me...
In both patterns you raise preflop, get the button and you are called by the BB and sometimes also the SB.
Basically it's at most 3 handed with both SB & BB, at least HU against the BB.
In both patterns you draw 2, like your opponents.
In both patterns you miss your first draw.
In both patterns your opponent check behind you.

pattern A : bet check bet with 2/2/1
pattern B : bet bet bet with 2/1/1

normal ? curious ? size sample too small ? obvious ?