Our orgo textbook must have been 4 inches thick. I can still remember in the first lecture, when the professor said, "your homework is to do all the problems in the book." All of them. Luckily I had an easy semester otherwise, so I sat in the library, and did untold pages of problems.
That said, p-chem (physical chemistry) was a lot harder ;-).
I suppose it depends on the professors you have. I had an excellent orgo professor, and a rather bad p-chem professor.
He was the hardest grader of any professor I ever had. He gave (partial) negative points for an incorrect answer on tests. I had friends who ended up with negative scores on their tests. The class average score was in the 30% range. I had one friend who managed to get every single question wrong on a 20 question true false section, which to this day still amazes me. Luckily it was on a curve, or he would have failed us all.
Eventually, I gave up trying to understand p-chem, and concentrated on just learning his very strange test style. That turned out to be a fantastic decision for my grade. I got the high score in the class on the last test and the final, which got my grade up from a B- to an A-. The downside was I never really learned p-chem ;-).
That said, p-chem (physical chemistry) was a lot harder ;-).