Personally, cash games are more difficult for me because the players are more aggressive and the stacks of chips are bigger. In tournaments, I feel more comfortable climbing the blinds. What do you prefer?
This depends on how you define "difficult".
According to the Merriam-Webster dictionary the following meanings are synonyms:
DIFFICULT means
1) hard to do, make, or carry out : ARDUOUS
2) hard to deal with, manage, or overcome
3) hard to understand : PUZZLING
ARDUOUS means
1) hard to accomplish or achieve : DIFFICULT
2) marked by great labor or effort : STRENUOUS
3) hard to climb : STEEP
PUZZLING means
1) difficult to understand or solve
STRENUOUS means
1) marked by or calling for energy or stamina : ARDUOUS
STEEP means
1) being or characterized by a rapid and intensive decline or increase
How do you interpret these synonyms, apply them to poker, and decide which is more "difficult"?