What other responses are there to positive statements that conveys meanings of 'excellent' and/or 'awesome' in one word. If there aren't any other one word responses, I can accept if they are slightly longer.
すばらしい - wonderful, fantastic (usually used to describe things that are of good quality, something that's well done, or something that leaves a good impression)
すごい - amazing, sick, cool, crazy (probably the closest to what you are looking for)
すげえ - awesome, sick, crazy, wow (pretty much すごい but a little more casual)