Depends on everyone's perspective.
I find chemistry (general) to be the easiest because everything seems pretty much the same like equilibrium, a little thermo, electrochemistry and a huge load of stochiometry (lots of conversion)
Organic chemistry might be harder but not because the subject is hard, rather because it's different from most classes you've taken before. There is veryyyy little math, the subject focuses more on how the structure of the compounds present look like and how they interact with each other. Roughly, thermodynamic and kinetic conditions are also explained. It's all about compounds containing the carbon atom and how the other atoms present in the compound affect it and how the geometry affects it and how the arrangement of those atoms affect it. It's more conceptual. I recommend you to read the first few chapters thoroughly, because they will help make ochem make sense later on.
I find physical chemistry easier, but most people don't. I think it depends on how much you like math, because there's a huge load of math. Make sure you understand partial differential equations. Pchem is generally divided into 3 sections: Thermodynamics, Quantum Mechanics and Statistical Mechanics. All of which requires a lot of math, let me repeat you need to know differential equations very well (Like maxwell's equations). They are both very conceptual and very numerical. You also need some more imagination and creativity and learn how you should assume.
I don't know much about analytical chemistry since I'm not a chem major.