Dumont's style is basically reading off the lecture slides he gives you. He explains the concepts very briefly and I found that reading the textbook was much more beneficial than his explanations. He'd go on tangents a lot..one time the majority of the class was just him talking about his car falling apart. However, he did provide help for the online quizzes which was nice of him
Also, his midterms and exams were very fair and there was no tricks or traps. Last year, we had no choice but to take Dumont for chem but I'm not sure if its the same this year..
Holmes is an excellent prof. Her lecture slides are amazing, she posts podcasts of her lecture in case you missed it, and she provides a lot of past tests for extra help. Another thing that I liked was that she gave us 5 bonus quizzes that were super easy. Her midterms were a breeze but her exam has historically been a killer. Make sure you study lots for that.
Smith was okay. There's nothing much I can say about him, we only had 12 lectures in total for the entire course. His lectures were mandatory and were basically just a bunch of iClicker questions. You learn how to program in your labs and tutorials and all the midterm material was in his slides. Now that I think back, I don't think it matters which prof you get for this course...but if you have Smith, stick with him because I don't think that Farmer is any different.
I've heard good things about Preston. I had Okon as a prof last year and he was great. Scary...but great. If you could get Okon, that'd be perfect but Preston is good too
Sorry not much I can say about him
Haskell too is someone I'm not really familiar with..If McLean is teaching 1ZA3 this year, you probably want to get into his class. McLean is one of the best teachers at Mac and he makes the lectures fun and interesting. Definitely try to get into his sections.
Fleisig is the only prof 1P03 has and he's pretty good. He makes a boring course kind of interesting and he's good to talk to.
Sorry for the overload of info..I had nothing better to do