Question: Which singer is better known for his work with a former band than as a soloist, Alex Band or Jonny Craig?

Context paragraphs:
Emarosa (album): Emarosa is the second studio album by the alternative rock band Emarosa.  It was released in June 2010 through Rise Records.  The album was produced by Brian McTernan, and it is also the last album to feature vocalist Jonny Craig.

Slaves (American band): Slaves (stylized as SL▲VES) is an American post-hardcore group formed in Sacramento, California.  The band currently consists of lead vocalist Jonny Craig, formerly of Emarosa and Dance Gavin Dance, bassist Colin Vieira of Musical Charis and guitarist Weston Richmond.  The band released their debut album, "Through Art We Are All Equals" on June 24, 2014.  Their second studio album, "Routine Breathing", was released on August 21, 2015.  The band released the single "I'd Rather See Your Star Explode" on January 20, 2017, the lead single off their upcoming third studio album: "Beautiful Death", set to be released in September 2017.

Relativity (Emarosa album): Relativity is the debut album by American post-hardcore band Emarosa released on July 8, 2008 through Rise Records.  "Relativity" was produced by Kris Crummett, producer of other bands such as Drop Dead, Gorgeous and Fear Before, whom Jonny Craig worked with on Dance Gavin Dance's debut album the year before.

We've All Been There: We've All Been There is the debut solo album by American singer-songwriter Alex Band, best known for being the former lead vocalist and songwriter of rock band The Calling.  The album was released on June 29, 2010 through Band's own label, AMB Records, in a distribution deal with EMI Records.

Downtown Battle Mountain: Downtown Battle Mountain is the debut studio album by American post-hardcore band Dance Gavin Dance, released on May 15, 2007.  According to an interview with vocalist Jonathan Mess, the album took its name from Battle Mountain, Nevada which the band visited while the album was being written.  It was produced by Kris Crummett, who mastered their EP "Whatever I Say Is Royal Ocean".  This was the last Dance Gavin Dance album to have Sean O'Sullivan on guitar, and the only full-length album to have Jonny Craig on vocals, until his rejoining in 2010.

Alex Band: Alexander Max "Alex" Band (born June 8, 1981) is an American musician and singer-songwriter, best known for his work in his former band The Calling and their hit song "Wherever You Will Go", which topped the Adult Top 40 for 23 weeks.

The Greatest of All Lost Arts: The Greatest of All Lost Arts is the second album by the American post-hardcore band Lower Definition.  The album was recorded in early 2008 with producer Kris Crummett and was released on July 8.  The album contains 11 tracks, with Jonny Craig providing guest vocals on "Pueblo Cicada".  The band hand-picked Kris Crummett as their producer.  This album marks the last appearance by bassist Stefan Toler and founding member/drummer Valentino Arteaga.

Jonny Craig: Jonathan Monroe "Jonny" Craig (born March 26, 1986) is a Canadian-American singer and songwriter.  He is currently working as a solo musician.  He has been the lead vocalist for the bands Dance Gavin Dance, Emarosa, Ghost Runner on Third, Slaves, and westerHALTS.  As a solo artist, he has released one studio album, two EPs and a live album to date.  He was also a part of the supergroup Isles & Glaciers.  Craig possesses the vocal range of a baritenor and his distinct type of soul-based singing has earned him considerable acclaim.

Live at Bamboozle 2010 (Dance Gavin Dance album): Live at Bamboozle 2010 is the first live album released by the post-hardcore band Dance Gavin Dance.  The album was released on October 18, 2010 and features a live recording of the band's performance at the 2010 Bamboozle Left in Angel Stadium on March 27, 2010.  The live performances reunites former vocalist at the time, Jonny Craig and Jon Mess.

Dance Gavin Dance: Dance Gavin Dance is an American post-hardcore band from Sacramento, California, and formed in 2005.  The band currently consists of Tilian Pearson (clean vocals), Jon Mess (unclean vocals), Will Swan (lead guitar), Tim Feerick (bass guitar), and Matthew Mingus (drums, percussion).  The band formerly included lead vocalists Jonny Craig and Kurt Travis.  Swan and Mingus are the only band members who have appeared on every studio album.

Supporting paragraphs: Alex Band Jonny Craig
Answer: Alexander Max "Alex" Band