More and more I go back to the 3ds (well 2ds in my case) for playing the classics. With a grip it is just really comfy and there's a ton of games and rereleases for it.
Only issue I played Samus Returns (brilliant) and noticed if you need to ride the shoulder buttons for any length of time it gets crampy. But that's true of most handhelds.
I like the Jem Hadar from DS9