Nice idea!

It changes all the time,though

But,right now :
1.Anathema
2.Sigur Ros
3.Porcupine Tree/other SW projects
4.Pink Floyd
5.Opeth
Honorable mentions, alphabetically ordered:
- The Dear Hunter
- Devin Townsend Project
- Dream Theater
- dredg
- Flying Colors
- The Gathering
- Godspeed You! Black Emperor
- Kamelot
- Katatonia
- King Crimson
- Led Zeppelin
- The Mars Volta
- maudlin of the Well/Kayo Dot
- Nightwish
- Pain of Salvation
- The Pineapple Thief
- Queen
- Radiohead
- Storm Corrosion
- Tool
And other stuff as well,but I mentioned enough already

.These days I mostly listen to progressive/alternative rock and metal,with a splash of classic rock and post-rock.However,I do listen sometimes to radio bu talso to symphonic music and jazz.I kind of grew out of femme-metal,Epica,NW and the Gathering being the only ones I listen to regularly(sometimes even WT).
