Ok thanks for the answer, now another question

Sometimes its hard for me to choose which hands I should play in a HU.

Of course i'll raise Ax,Kx ( and reraise with a high kicker )
QJ-Q8 is also a raise I think...
then i will play PP und Suited connectors, even offsuited if they are high enough. But what about "borderline" hands like J2,J4,Q3 etc.

Aren't there some general rules of thumb ( if you can say so in english )
to decide which hands you should play and which you should fold PF.

Btw. Somewhere in the Internet i read, that you should raise/ go all in with every King and every Ace and every combination of hands which would make at least 17 points in Blackjack. What about this? ^^

ceeya