>>37198188huge, awkward, bad build quality, especially on the dpad. N2DS XL and OG 3DS have the best dpads of the bunch, N2DS XL has the best form factor, N3DS has a good form factor and a screen that's appropriately sized for the resolution of the games. I upgraded from 3DS to N3DS XL and regretted it, only thing XL has are the extra Virtual Console titles and like two N-exclusive games.
>>37199185massive and cheap library including all DS, 3DS, and a some SNES, NES, and GB/GBC titles. now's the best time to get into it because the used game prices for 3DS are tanking.
>>371993962DS is for hamburger hands and has terrible potato buttons, go with the non-XL N3DS