#6 - Keep height at 42" and extend counter for bar seating.
Q
#5 - Keep height at 42" and extend counter for bar seating.
#4
#3 - Interesting look.
#2 - Add a counter to the back side of the existing wall.
# 1 - Counter top extends at same height.
#6 - Keep height at 42" and extend counter for bar seating.
Q