much, MUCH respect to the roots. they're the reason many/most of us are here. they have one of the most impeccable catalogs of music ever. i find it a terrible shame that they've become underrated on their own web site.

bjork would be at the top of my list if the live releases and soundtracks count as albums (like you counted 'wake up' and TRCA), but they don't by my normal criteria

a group i listen to that could claim the title (if they were alive) with studio work alone would be coil. i vouch for these 13:

ELpH vs. Coil: Worship the Glitch (1995)
Black Light District: A Thousand Lights in a Darkened Room (1996)
Time Machines: Time Machines (1998)
Astral Disaster (2000)
Musick to Play in the Dark Vol. 1 (1999)
Queens of the Circulating Library (2000)
Musick to Play in the Dark Vol. 2 (2000)
Constant Shallowness Leads to Evil (2000)
Moons Milk (In Four Phases) (2002)
The Remote Viewer (2002)
Megalithomania! (2003)
The Ape of Naples (2005)
The New Backwards (2008)


then there is autechre:

1995: Tri Repetae++ (1 album and 2 EPs)
1997: Chiastic Slide
1998: LP5
1999: ep7
2001: Confield
2003: Draft 7.30
2005: Untilted
2008: Quaristice
2010: Oversteps
2010: Move of Ten


squarepusher (whatup seandammit):

Feed Me Weird Things (1996)
Hard Normal Daddy (1997)
Big Loada (Nothing Records 1998 version)
Chaos A.D.: Buzz Caner (1998)
Music Is Rotted One Note (1998)
Budakhan Mindphone (1999)
Maximum Priest EP (1999)
Selection Sixteen (1999)
Go Plastic (2001)
Do You Know Squarepusher? (2002)
Ultravisitor (2004) (the EP releases around this are incredible as well but too short to list)
Hello Everything (2006)


i'll also agree with "Prefuse 73 & his infinite aliases" trailing the above

btw, i can't see myself ever caring about a new artist enough to follow a 10+ album run in 15 years