I'm not done yet, but I take it this is the most posted-in topic about Best of '07?
here's my (blogged) list so far:
http://allmediareviews.blogspot.com/
50. Coheed - NWFT
49. Dream Theater - SC
48. PT - FoaBP
47. People For Audio - THE NEW ANCIENTS
46. Inme - DAYDREAM ANONYMOUS
45. Alter Bridge - BLACKBIRD
44. Serj Tankian - ELECT THE DEAD
43. Menomena - FRIEND AND FOE
42. The Polyphonic Spree - THE FRAGILE ARMY
41. Deas Vail - ALL THE HOUSES LOOK THE SAME
40. Paulson - ALL AT ONCE (reissue w/ Bonus Tracks)
39. Marillion - SOMEWHERE ELSE
38. The End - ELEMENTARY
37. Porcupine Tree - NIL RECURRING (EP)
36. One Republic - DREAMING OUT LOUD
35. Omar Rodriguez-Lopez - SE DICE BISONTE, NO BUFALO
34. Woven - AFTERMATH (EP)
33. Bend Sinister - BEND SINISTER (EP)
32. Andre Matos - TIME TO BE FREE
31. Battles - MIRRORED
next 10 added 30-21
30. Blackfield - II
29. Fields - EVERYTHING LAST WINTER
28. The Pax Cecilia - BLESSED ARE THE BONDS
27. Cavil at Rest - ORION WAY (EP/3 EPs in 1)
26. The Apples in Stereo - NEW MAGNETIC WONDER
25. The New Pornographers - CHALLENGERS
24. Dark Tranquillity - FICTION
23. Strata - STRATA PRESENTS THE END OF THE WORLD
22. Neverending White Lights - ACT II: THE BLOOD AND THE LIFE ETERNAL
21. Thurisaz - CIRCADIAN RHYTHM
got 20 more reviews to get through.