I don't think TNG would've had Geord killing Troi in a hologram as a rage experiment. They had him become a brainwashed assassin, but didn't do anything with it after the episode.
Voyager was both light and dark and did them both well considering the circumstances. The darkest TNG got was existential threats to the Federation, which were mostly linear 2 part episodes. When TNG was on its game, it was like okay, nice, unless you're a kid.
They also learned from Data and not tried to make the Dr. THE WHOLE fukkING SHOW!! I loved Data's progression, which meant absolutely nothing after Nemesis, but since he was also the strongest, the most annoying character was the most featured. Voyager had a much better balance with Seven of Nine
Haha Nemesis..yeah that was a pretty big fukk you to the fans in regards to Data. The Janeway cameo was though.
Voyager did have an alright balance of lightheartedness and serious eps, but for me some of the eps were just meh..mostly the holo deck focused ones fair heaven, the nazi one, beowolf (although I liked how it was the Doc's first exposure to the Holodeck)
Most of the two parters were dope though...Future's End, Basics, Scorpion, Endgame, Year of Hell.