The games look good on a 3DSXL to me. And it doesn't really matter which one you get. I'd say get the sequel to whichever you had before. If you didn't get Black or White just get White 2. Because everyone else gets Black 2 for some reason.
Black 2 doesn't have boring forest, lame opelucid and loleasymode.
Version exclusives? Pfft. Trade. --- BlackFC:1807-8830-3725. "Squids are evil!" http://i.imgur.com/VcOip.png
Except Challenge Mode is unlocked after finishing the game and it's not even a challenge. The tiny boost it gives to the post game trainers pale to the PWT and Subway, which are available to both versions and are unaffected by Keys.
White Treehollow is the same as Black Skyscraper. The only difference is what Pokemon the trainers inside use, and Treehollow has a small advantage with it having Chanseys and Blisseys for more XP --- Playing: Project Cross Zone, 2nd SRW OG Waiting for: SRW 3DS