Which one would you get p s or v?

What are the major differences between the 3. I know what the p s v stand for so you don't have to explain that. Is the v more comfortable than the original Gameboy I could play for hours and I was okay the only thing is I was a kid back in the day playing. I don't have giant hands though. Are 3.5 inch screens too small? I think that would be the in needle for any device besides 10 max. Anyone beat super Mario Bros 2 original jap on the device? Can anyone huidoken most the time? Is perfect dark on 64 "playable". For people that have a p and a v or m and v which one do you like more? Sorry for all the questions. It you can answer these I will be closer to buying a device. Thanks