Please Everybody What's The Best Stats for BM?

Don't worry. For now, there probably is not much room to be wasting any points (unless you are thinking of putting any points in MAG). Your minimum allocation to STR and DEX is dictated by your gear. If you plan to use heavy armor, you need to be putting an average of 2.5 points into STR each level. Most blademasters plan to use heavy armor (or to at least have that option). If you plan to use axes, you need even more STR (average 3 points per level). For any other weapon family, the requirement for heavy armor is greater than for the weapon. Your minimum DEX will pretty much be driven by your weapon family. Fist/Claw requires an average of 2 points per level in DEX just to use the gear. Sword is 1.5, spear/pole is 1, and axe/hammer is 0.5 (but that amount is not enough for light armor - an axe build that wants a light armor option would need a minimum of 1 DEX per level).

Those minimums do not leave many extra points each level to allocate, but your choice of how to spend these extra points is a matter of taste between VIT, STR, and DEX (or between HP, damage per hit, and likelihood/frequency of hits by you and of misses by mobs). Read the forums to inform your choice here, but there seem to be good arguments for any of the three options depending on your play style.