It's about that time of year again: scheduling. You're sitting, staring at your computer screen debating whether or not you want an 8:00 a.m. Monday/Wednesday class, or a 7:30-10:00 p.m. Tuesday/Thursday class. They're both brutal, but which is worse? You've decided they're equal, and your deciding factor is now going to be the professor rating on Koofers. Here's five of the professors you're going to come across in college:

1. The mean machine

The rules are posted on the door before you even walk into class. No phones, laptops, tablets, smiles, friends or happiness. You will sit and you will learn. No ifs, ands or buts about it. The exams will be long, hard, monotonous and practically impossible unless you're the next Stephen Hawking. You dread the class, you dread studying for it and you really dread the day you have to tell your mom you 0.0'd it.

2. The jokester

The professor that most definitely peaked in high school. The self proclaimed president of a fraternity that only exists in movies. This professor will make you laugh so hard you're in tears, pick on the people FaceTiming in the back of the room and make stupid jokes about the material you're learning. It's all great, and they've got a great rating on Koofers. There's always one problem though. Whether they're a super harsh grader, only use iClickers or have a 700 question final, they're always too good to be true.

3. The possible druggie

You're not sure what's going on with this guy. And it's almost always a guy. He's downright crazy, and your only explanation is that he is on drugs. He's teaching a lesson on history, and has somehow gone so deep into his conspiracy theory on the existence of mankind that you're questioning your own existence. You're not sure how you feel about him, and you're really not sure how much you're actually learning in his class. Either way, he's funny and you're never bored in his class.

4. The easy peasy

This professor is great for one reason and one reason only. You're going to 4.0 the class regardless. However, you dread the class. You took a class on the same subject in high school and it was 10 times more difficult! And this professor takes attendance!? The exams are easy, the notes are posted online and the material is clear. There's no need to show up to class, but this professor makes you do it anyways with the threat of attendance points. You're always bored, and the guy sitting next to you is taking the class way too seriously. It's brutal, but at least you're winding up with a good grade and no office hours.

5. The rare, but perfect, professor

You'll only come across this once or twice in your entire college career. The class is planned perfectly, your professor clearly speaks English and has great handwriting. There's not too much homework, the exams are moderate, there's extra credit and it's just your teaching style. This professor loves you, and you love them. You're not afraid to ask questions, but you rarely have to anyways because they're so good at teaching. They're a hidden gem, and you treasure every second you have with them.