Go to the Mars website and check out the flakes from Gawith & Hogwarts. Consider Rum Flake, Glengary Flake, Bob's Chocolate Flake, Kendal Flake & Dark Flake Scented. I also like Broken Flake #7. That's just the Gawith stuff and the one's I've named (except for the Rum Flake and Bob's Choco) are more or less floral in nature...but both good and powerfull, esp. the Dark Flake.
Other than the above, some of MY favorite flakes (that you can actually get) are Esoterica Stonhaven (which is in stock RIGHT NOW and will only last a few days), Solani Silver, Germain Brown Flake, Escudo, Bjarne Flake DeLuxe (a good one to cross over on), Ratray's Trio (Hal O' the Wynd, Marlin Flake & Old Gowrie) and Stokkebye's Bull's Eye Flake and Luxury Twist Flake (another good crossover).
That should get you started and break the bank! lol