I hate to be "that guy", but better is a very subjective term. Will the Spark sound better than the AT2020? depending on the source it might, but in some applications you may find the AT2020 sounds better. Will it sound different? yes. For the price of the Spark, however, i'd almost be tempted to say just give it a go. if you don't like it, sell it on. There's also plenty of audio example of both mics all over the net and, although these should be taken with a big pinch of salt, it should, at least, help you hear, to some extent, what the difference's are. Better yet, see if you can find someone with the spark and borrow it