For me, I get/got a lot of my inspiration from War_Hero, shook, and madmanmad when he used to make replays. A guy named wildbox also showed me a few ways to tweak my moves when he posted some amazing replays.
Other than that, I'm fans of most people in ORMO (excluding myself of course, my replays don't seem as good to me as they do to other people sometimes), as well as replay makers that just seem to pop up out of nowhere with awesome replays (chow11, spike6599, leilak). Oracle, deady, and more recently RedDevil have quickly improved since the time that they uploaded their first few SP replays, which is good too.
Honestly, there's just too many great replay makers to list in a single post and still tell their story in detail.
PS. <3 Rutzor, <4 Tamer0