Ninja, speaking as a satisfied user of Core 2 I still think you made the right choice. I have been researching this whole question and I have concluded that what a newbie like me needs may be different from someone who wants to grow into it, in your felicitous phrase, needs.
Of course, none of us would base our judgement on what a commissioned salesman said

. Still, the Aardvark looks superior in a lot of ways but is also more expensive than the Core 2.
Lexicon offers an Athlon compliant download, by the way.
I kind of suspect that the whole question is similar to the "my Chevy 6 will beat your Ford flathead" debate that I heard in my junior high years, but even so if some recorders are able to score a Core 2 for a low price I guess Darwin has been vindicated.
My playing/recording partner is going for the Aardvaark, and more power to him. But just because the Core 2 is not fashionable doesn't mean it's a bad card.
In fact, I think it sounds killer.
J