Definitely prefer this one, just the hints of the purple in the garlic gives it a helping hand IMO. Don't get me wrong, I love B&W stuff, but it's just that I love food as well, and one of the joys of food is the colour - and it's one of the few things you can actually experience from a photograph - the smell, and taste are beyond reach, and B&W just leaves the texture.
As far as flickr's concerned, and "resizing artifacts", it definitely leaves its own footprint on any of the "downsized" versions. If I'm posting something for use on here, and I'm concerned about quality (i.e. it's for crit. not just a "happy snap") then I do all my resizing and meddling before sending it to flickr, sending a 1024px max side length version to flickr, and always posting the "original size" version on here. Anything else gets the "squigglies" - especially noticeable in some of my darker still life stuff.