I preferred And Lee's Hulk due to its strong drama and character work. It seemed like a piece of art, for example when they mimicked comic book panels, or in the fight with the tanks at the end.
There was also a lot of humanity to Eric Bana's Bruce Banner, we saw who he was as a person and it was a rare film that I thought had the "socially awkward scientist who is somewhere on the autism spectrum" role played out in a humane, empathetic, and realistic manner. Normally those roles are played for the audience to laugh at (Steve Urkel, or GdT's scientist characters), and later MCU scientist characters (Stark, Banner, etc) are simply jocks with brains. Rather than representing nerds, they pretend that nerds are jocks. An example is Tony Stark "I'm a billionaire, philanthropist, playboy, I invent a new suit every week, and I'm going to bring back the Prima Noctae, all shall worship me," I get that everybody loves him but I mostly find his shtick annoying.
It's the way Bana rode his bicycle (In contrast, Ruffalo's Hulk might just drive a Ferrari), how he couldn't get his relationship with Betty to work, how he couldn't effectively talk back to Talbot. The Hulk was in effect a power fantasy for him to resolve his problems, but at the same time it's an anger that he was afraid of, as anger has consequences. I will leave aside the rich commentary on mature capitalism and the military-industrial complex.
Aside form that, the magnificent cinematography continues to be unmatched by the MCU (Ragnarok is arguably an exception), as is the excellent musical score. And Lee's Hulk is a movie that I've seen many times in the past, and will see many more times in the future.
