I think the fifth and sixth seasons are the best too. That's the only unpopular opinion I have that isn't too controversial, LOL. Here are some others...
Agree with those who love this show not just despite how cheesy and overly earnest it can be but because of that.
You have company on that one. I hated SV's Lois. I wanted to love her but she's so egotistical and grating. Even the way she calls Clark "Smallville" gets on my nerves and makes her sound so condescending. I agree that obnoxious is the right word for her. I also agree that I didn't believe she and Clark had a deep and real love. Their bickering just made it seem like they got on each other's nerves, not that it was secretly masking sizzling chemistry and feelings they didn't want to face.
I love Lana Lang. I view her as an unsure, introverted and somewhat meek young woman who was always eager to be liked and never confident of her real identity and purpose, and I relate to that a lot. She was defined and saved by other people and ultimately had to strive to define and save herself. Along the way she still managed to be empathetic, intuitive, generous, hardworking, supportive, smart, and stronger than she seems. Not trying to argue at all or change anyone's mind, but I just wanted to try to explain why the unpopular Lana Lang has always been one of my favorite characters. And I will always be a Clark/Lana fan even though I knew from the beginning it was futile lol.
I love Chloe too but I wish she had never had a crush on Clark in the first place. I liked her with Oliver but loved her with Jimmy.
I read in a lot of places that the last two or three seasons are considered a "resurgence" for the show and a significant improvement over the show's middle seasons, but I thought the show's middle seasons were the best ones.
Tom Welling gets trashed for being a wooden actor but I really like how he played this role. To be honest I thought Justn Hartley as the Green Arrow was a lot worse of an actor, but I enjoyed his character anyway.