Borderline decissions are always a little tough to express binary.
So the binary answer is: I'd pass every given Hand
(though I can't imagine I would
)
hand 4 and 6 are tempting because the suit quality is decent and the preemptive value of 1
♠ should not be underestimated. I would neither be shocked to watch my hand pulling the 1
♠-card out of the bidding box nor producing the little green one. Thankfully my P is always very patient with my foolish bidding
With hands 1 and 2 there's just too much wrong (shape, Honours in the worng places,..)
Hand 5 simply is too weak and you have to draw a line somewhere, don't you.
regards
Janis