If I wasn't a cheap bastard, happy with my tablet and a few free or f2p games for my mobile gaming, PSV would probably be my choice, as for my tastes it's the most comfortable portable I ever tried, while I found 3DS and PSP quite uncomfortable. Never tried NS, I think its concept is great, but currently it's priced well beyond what I would ever spend for a portable, while for home gaming I'm still a PC guy.