DS games on a 3DS or a 2DS

[RodrigoCard]

DS/DSi games on 3DS have a WORSE image quality than in the original hardware.
If you hold start+select at the launch it will run in native resolution with black bars and look much better, but also much smaller.

So, since you have the best device to play DS games (aka DSi), you will feel that you will get a worse experience even with the 3DS XL.

I would stick to a DSi for DS games.

Cheers