I have a lot of scrap heros, especially because I feel I have SO far to go to get to their level, but someone who has recently caught my eye is Sula! Her gallery is amazing! Some examples:
Her gallery is just eye candy - awesome layering, amazing photos, and perfect title work!
And then I also love Sugi:
I love Sugi's gallery because she can rock a template out (and I am completely dependent on templates) and her photos are always SO perfect and match the kit perfectly (which I am also quite obsessed with!).