Yes, B5 had dated wizbang special effects, but B5 was not intend to be eye candy.
The stories within stories were epic in time, spanning generations.
The character development was awesome, some of the best I've ever seen in any sci-fi series. Who could ever forget Londo Molari, a very complicated individual who unwillingly became saddled with enormous political power and had to use it while being in "chains" that no one could see but him. Londo was often faced with difficult choices, none of them desirable, and he had to choose; not choosing was not an option. I sometimes despised him and admired him all at the same time. I have rarely seen any story portray a more interesting individual.
And Delenn, an extraordinary women of another race who through her kindness and determination to see the best in everyone materialize in reality, changed the destinies of entire species.
It still is one of my all time favorite sci-fi series.