Which return to Arkham game should I play first?

I'm a fan of the "Return to Arkham" series and have been eager to dive into its games. However, I'm faced with a dilemma: which one should I play first? The choices are vast, with each game promising a unique experience. Should I start with the original "Arkham Asylum" for its iconic storyline and groundbreaking gameplay? Or perhaps "Arkham City" for its expanded map and deeper character development? Or maybe even "Arkham Knight" for its modernized graphics and intense action sequences? The choices are endless, and I'm not sure which path to take. I want to maximize my gaming experience, but I also don't want to miss out on any crucial details or backstory. What would be your recommendation?