What are the best Amiga games?

I want to take a longer look at the Amiga and what sets it apart today, but it’s hard to be impressed by what people seem to claim as the “best” Amiga games at this point, mostly because a lot of those games are ports and better or equal versions of the game were available elsewhere.

So if you care about the Amiga, I’m curious to know: what’s worth looking at in 2015? Are there versions of games that are historically significant? I see people talk about the quality of the Marble Madness port or Mortal Kombat II, but considering how easy it’s become since then to simply play the original versions of those games, the ports fall a bit flat. I owned an Amiga 500, but didn’t have access to a ton of games at the time.

So, then, I ask you: what are the best Amiga games? What should I definitely be looking at?