Question: who has more skill  Serj Tankian or  Layne Staley

Context paragraphs:
Enter the Chicken: Enter the Chicken is the fourteenth studio album by musician Buckethead.  The album was released on October 25, 2005 by Serj Tankian's label Serjical Strike.  It has 11 songs, two of which are less than twenty seconds long.  It contains appearances from such artists as Saul Williams, Maximum Bob, Efrem Schulz and Serj Tankian.

Empty Walls: "Empty Walls" is a song by musician Serj Tankian.  The song was released as the first official single and first track off of Tankian's debut solo album "Elect the Dead".  The song has been described as a "traditionally pummeling rocker".

Serart: Serart is a collaboration album by two international Armenian musicians: Serj Tankian ("Ser-"), lead singer of System of a Down, and folk multi-instrumentalist Arto Tunçboyacıyan ("-art").  It was the first release on Tankian's own label, Serjical Strike Records.

Layne Staley: Layne Thomas Staley (born Layne Rutherford Staley, August 22, 1967 – April 5, 2002) was an American singer-songwriter who served as the lead vocalist of the rock band Alice in Chains, which he founded with guitarist Jerry Cantrell in Seattle, Washington, in 1987.  Alice in Chains rose to international fame as part of the grunge movement of the early 1990s, driven partly by Staley's distinct vocal style, as well as the harmonized vocals between him and Cantrell.

Serj Tankian: Serj Tankian (Western Armenian: Սերժ Թանկեան , ] ; born August 21, 1967) is a Lebanese-born Armenian-American singer-songwriter, composer, multi-instrumentalist, record producer, poet, and political activist with Armenian descent.  He is best known as the lead vocalist, songwriter, keyboardist, and occasional live rhythm guitarist of the metal band System of a Down, formed in 1994.

Layne Staley: Angry Chair: Layne Staley: Angry Chair is a biography by Adriana Rubio about Layne Staley, the lead vocalist of the rock band Alice in Chains, published in January 2003.  As it is known, the book "Layne Staley: Angry Chair — A Look Inside the Heart and Soul of an Incredible Musician" written by Adriana Rubio (Argentinean journalist and a fan of Alice in Chains), features 50 pages of photos of Staley's art work, sketches, diary entries, and childhood pictures.  It also contains an alleged last interview of Staley that Rubio claimed that she conducted less than three months before he died from an overdose of heroin and cocaine, in April 2002.  Rubio did extensive interviews with Staley's mother, Nancy Layne McCallum, and his sister, Liz (née Elmer) Coats, to write the book.  It is named after Alice in Chains' famous song, "Angry Chair".

Elect the Dead Symphony: Elect the Dead Symphony is the first live album by System of a Down frontman Serj Tankian.  It is available in CD, CD/DVD, LP, and Digital Download formats.  It features the Auckland Philharmonia Orchestra at the Auckland Town Hall in Auckland, New Zealand.  Orchestral arrangements were by John Psathas.  Material for the performance is from Tankian's solo debut, "Elect the Dead" with some additional previously unreleased songs.

Elect the Dead: Elect the Dead is the debut album by rock musician Serj Tankian, lead singer and founding member of Armenian-American metal quartet System of a Down.  It was released on October 22, 2007.  Alongside Tankian appears Armenian-American coloratura Ani Maldjian, drummers John Dolmayan from System of a Down and B. Brain Mantia of Primus and Guns N' Roses, Dan Monti on guitars, as well as a string section featuring Antonio Pontarelli.

Sky Is Over: "Sky Is Over" is a song by Serj Tankian.  The song was released as the second single from Tankian's debut solo album "Elect the Dead".  The song has charted on both the Modern Rock Tracks and the Mainstream Rock Tracks in the US.

Mad Season (band): Mad Season was an American rock supergroup formed in Seattle, Washington in 1994 by members of three popular Seattle-based bands: Alice in Chains, Pearl Jam and Screaming Trees.  Mad Season released only one album, "Above", and is best known for the single "River of Deceit".  The band went on a semi-permanent hiatus in 1996 due to the band members' conflicting schedules and vocalist Layne Staley's problems with substance abuse.  Attempts were made in the late 1990s to revive the group without Staley; however, the band dissolved following the death of bassist John Baker Saunders in 1999.  Staley died three years later of a drug overdose.

Supporting paragraphs: Serj Tankian Layne Staley
Answer: Serj Tankian