>>103872837Wally's run post crisis includes issues written by Morrison but generally it's a pretty good run all in all, and it's going to be more of what you might be used to if your are mostly used to comics written in the 1990s or past two decades.
If you like or can enjoy the Silver Age, then Barry's initial run sets up a lot of the criminals (e.g. Captain Cold, Abracadabra) and a lot of the premises that were better developed by later writers for the entire Flash family, but show just how imaginative and creative Gardner Fox could be. Barry's Silver Age run is pretty much more science based in some legit ways than a lot of other things are (such as the comparable runs at the House of Ideas, where an irradiated spider not only gave you advanced healing, something that wouldn't make sense in even comic book science ways, but proportional strength of a spider became things like being a human being whom all of a sudden could keep a building from falling down).
Fun (non-Flash) Fact: spider based heroes existed in the Golden Age, prior to Peter Parker being an illiterate wet dream in Stan's brain, except all they could do were typical spider based power things (climb walls or stick to the ceiling, etc.).