Question: Who has performed as a member of more musical groups, Alexi Laiho or Jónsi?
Context: Suicide By My Side is the third and final album by the power metal band Sinergy, released in 2002.  It shows a substantial progress in their musical style; singer Kimberly Goss performs in a sharper, more aggressive vocal style, and guitarists Alexi Laiho and Roope Latvala perform more technical solos.  Goss has noted that while the title (and the title track lyrics) are to an extent autobiographical, unlike she states in the music video, she has never attempted suicide. Nihil is the sixth full-length release by Impaled Nazarene.  It was released June 16, 2000 through Osmose Productions.  Alexi Laiho of Children of Bodom plays guitar on the album.  Laiho has also composed songs "Cogito Ergo Sum" and "Zero Tolerance".  The album recently entered Germany's Index List which means the album may not be advertised in public or sold to minors.  The song "Zero Tolerance" is infamous due to its homophobic lyrics (it's not included in the booklet in some editions). Nishad George is an Indian heavy metal/hard rock guitarist from the San Francisco Bay Area in Northern California.  He is a graduate of the Berklee College of Music, and was classically trained by John McRae, a former student of the world-renowned Christopher Parkening.  He began playing rock music at a young age and has studied under Metal guitarist Joe Stump of HolyHell.  He has worked in Carnatic music and Heavy Metal, with a mastery of atmospheric textures and musical prowess .  He has noted the following as guitarists of influence; Steve Vai and Alexi Laiho. Motherwar is a 2000 album by Dispatched.  The band's cover of "The Final Countdown" is often mistaken as Children of Bodom's.  However frontman Alexi Laiho has stated that they have never covered the song. Jón Þór "Jónsi" Birgisson (] ) (born 23 April 1975) is the guitarist and vocalist for the Icelandic post-rock band Sigur Rós.  He is known for his use of a cello bow on guitar and his falsetto or countertenor voice.  He is blind in his right eye from birth as a result of a broken optic nerve from the brain.  He is openly gay.  Apart from Sigur Rós, Jónsi also performs together with his partner Alex Somers as an art collaboration called Jónsi & Alex.  They released their self-titled first book in November 2006, which was an embossed hardcover limited to 1000 copies, along with their first album, "Riceboy Sleeps", in July 2009. Beware the Heavens is the first album by the power metal band Sinergy, released in 1999.  The album features two instrumental tracks "Born Unto Fire and Passion" and "Pulsation", and a track inspired by the series , entitled "The Warrior Princess".  Some melodies that can be heard in the song "Beware the Heavens" were sampled from a song called "Translucent image" by IneartheD (now known as Children of Bodom); the song is featured on IneartheD's 1995 demo "Ubiquitous Absence Of Remission".  This is the only album where Jesper Strömblad (In Flames guitarist) plays guitar alongside Alexi Laiho; his position was filled in by Roope Latvala on all subsequent albums. ESP Alexi Laiho Signature Model is a guitar model distributed by ESP. Children of Bodom is a Finnish extreme metal band from Espoo.  Formed in 1993, the group consists of Alexi Laiho (vocals, lead guitar), Janne Wirman (keyboards), Henkka Seppälä (bass), Jaska Raatikainen (drums) and Daniel Freyberg (rhythm guitar).  They have released nine studio albums, two live albums, two EPs, two compilation albums and one DVD. Alexi "Wildchild" Laiho (born Markku Uula Aleksi Laiho; 8 April 1979) is a Finnish guitarist, composer, and vocalist.  He is best known as the lead guitarist, lead vocalist and founding member of the melodic death metal band Children of Bodom, and is also the guitarist for Sinergy and Kylähullut.  He has previously played with Thy Serpent and Impaled Nazarene on occasion, as well as Warmen and Hypocrisy. "Blooddrunk" is a 2008 single by Finnish melodic death metal band Children of Bodom, taken from their 2008 album "Blooddrunk".  The lyrics focus upon "self-destructive behaviour", and being addicted to hurting yourself.  Written solely by Children of Bodom frontman Alexi Laiho, the song was generally well received by critics.
Answer: Laiho