Similar bands to Opeth

What bands in other genres of heavy metal would you compare to Opeth in terms of musicianship, talent and sheer brilliance?

IMHO,
Into Eternity & Extol (old) in progressive death metal
Dream Theater in progressive metal
Porcupine Tree in progressive rock
Korpiklaani in folk metal
Scar Symmetry & Mercenary in melodic death metal
Metallica in thrash metal
Graveworm & Anorexia Nervosa in symphonic black metal
Agalloch,Anathema & Katatonia in doom metal
Borknagar in viking/black metal
Between the buried and me in metalcore (although i hesitated to put them in this category!)
Trail of tears & Sirenia in gothic metal
Darkane in technical thrash/death metal

There are SO MANY bands in those genres that i had difficulty in making choices!Other bands that i would mention are The Gathering, Moonspell, Strapping Young Lad, Lux Occulta and many more...I had this topic in my head for a couple of days and i just wanted to share my view on this :) Now, it is JUST my opinion so don't bash me for it! :)
 
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I only like a few of these as much as Opeth, but they're the closest I can think of to quality and career longevity in the whole metal/hard rock scene:

Pain of Salvation
Isis
Neurosis
Katatonia
Anathema
My Dying Bride
NoMeansNo
Ulver

And Django Reinhardt and the Beatles.
 
Lots encompass different elements, but only a few actually sound similar to Opeth in overall style.

Those that spiring to mind are Agalloch, new Enslaved, My Dying Bride, Katatonia and Anathema.