I'd pick Capitalism. For a variety of reasons, practically all of which I don't really want to mention because that almost never goes well on forums such as these. Regardless, Capitalism is what I'd choose.
, Re: not wanting to mention reasons because it almost "never goes well on forums such as these".
Perhaps not at all forums - but I have found that the people here at 'Bleeping Computer' really do give us a chance to debate without 'being eaten alive' by the opposing side - gentle smile.
On a personal note, I think it's the differences between all our views that make us think, really think - and help us learn why we believe what we do and that we could possibly see the world is filled with grey areas, rather than always black and white or 'right' and 'wrong'.
re: "to take the best of both, to make a way of life that's better for all of us,or is Communism and Capitalism so vastly different" ...
I've often wished for something very similar. I don't think the 'core' of either is perhaps so, so different - it's just the implementation of a 'gentle union of the two' seems such an impossible dream. Not because it would be impossible, but because our world seems to be 'ruled' and no matter how democratic we try to be, it's often only a few voices that are ever heard.
On a personal note, I often think politics is much like asking someone how they like the new car or boat that they've just purchased. Nearly every time they will say how wonderful it is, even if they aren't truly satisfied with it. After all, we can't 'take it back' and we don't want our friends to know we paid a fortune for a hunk of junk, right? Gentle grin.