I would love an arcade card just to see how the PCE did in comparison.
So you've never seen 'em yourself but felt it was your duty to say the Genny is better? 
First of all I simply quoted what was being said on the OTHER SIDE, you see different people have, and this is crazy and I know it, different opinions. Second I never, not once, not even implied, that the Genny was better. The narrative in your head said that and you've attached it to me.
My duty? As in what add to the conversation? Perhaps, my opinion is that play the Neo Geo variants or one of the million PS2/PS1/Saturn/Dreamcast/XBOX/ETC variants that are far superior. They are also MUCH cheaper to get ($5 at Five Below and I got a stack of SNK games for the PS2) and basically arcade perfect minus tiny load times.
Have I played the PCE Version? Does Emulation count? Then yes I have via my laptop and a Hard Wired Xbox 360 controller. It's not exact but is extremely easy to test out for yourself. I sure would love to see it work on my Duo R and my CRT TV with scan lines as it should have been vs being emulated on my Laptop. I have all the MD versions and they are fun enough but I really just pull out the old AES and play these games when the feeling should arise.
My personal opinion? Do I feel that the PCE versions are the end all be all? No, but they are fun in their own right. I feel the opinion I quoted was from someone who had a solid opinion and pointed out what he liked and didn't. Nothing more, nothing less.