Dominion lets you spend all the time making decisions rather than waiting for other people by having hardly any interaction between players; at times it can feel like a time trial race. I tend to prefer Tanto Cuore; while it's largely a direct rip-off (and the art puts some people off) it gives you more attack options, and the balance shifts to allow a wider variety of strategies (Dominion I find duchies are almost entirely irrelevant, and anything other than going for the high end rarely works). So it's an improvement, but it's so similar I suspect we're converging on the ultimate form of that kind of game.
I still need to try Agricola.