Question: Which songwriter was a member of the most bands, Guy Chadwick or Mollie King?

Context articles: Guy Fawkes Night
Back to You (Mollie King song)
Rob Persaud
The House of Love
The Saturdays discography
Guy Chadwick
Selwyn Birchwood
Guy Webster
Mollie King
The Saturdays

Guy Fawkes Night, also known as Guy Fawkes Day, Bonfire Night and Firework Night, is an annual commemoration observed on 5 November, primarily in Great Britain.
 Its history begins with the events of 5 November 1605, when Guy Fawkes, a member of the Gunpowder Plot, was arrested while guarding explosives the plotters had placed beneath the House of Lords.
 Celebrating the fact that King James I had survived the attempt on his life, people lit bonfires around London, and months later the introduction of the Observance of 5th November Act enforced an annual public day of thanksgiving for the plot's failure.
"Back to You" is a song by English recording artist Mollie King.
 The song was released as a digital download on 19 August 2016 by Island Records.
Rob Persaud is a British music producer and songwriter who currently works and resides in Los Angeles, California.
 He is published by Dr. Luke's Prescription Songs.
 He has produced, engineered, mixed or written tracks for Jay Sean, Lady Gaga, Chris Lane, Mollie King, Jordan Fisher, Before You Exit, Sabrina Carpenter, Josh Groban, Madison Beer, Nick Jonas and others.
The House of Love are an English alternative rock band, formed in London in 1986 by singer-songwriter-guitarist Guy Chadwick and co-founder and lead-guitarist Terry Bickers.
 They rose to prominence in 1987 with their first single "Shine On" released on the independent label Creation.
 The following year, the band released their critically acclaimed "eponymous debut album" and built its reputation over the next few years through subsequent releases, constant touring, and the support of English press.
 They then signed to Fontana records in 1989 and met commercial success in 1990 with their "second self-titled album", which peaked at number 8 in the UK albums chart.
 Their third album "Babe Rainbow" was favourably met by the critics in 1992 and also reached the top 40 in the UK.
English-Irish girl group The Saturdays have released five studio albums, one compilation album, two extended plays and eighteen singles.
 The Saturdays were formed in 2007, with a number of different auditions through their management: Frankie Sandford, Rochelle Wiseman, Una Healy, Mollie King and Vanessa White were the successful auditionees and were granted a place within the band.
Guy Stephen Chadwick (born 21 March 1956 in Hanover, Germany) is an English singer, songwriter and guitarist, best known as the frontman of alternative band, The House of Love, for which he wrote the majority of the band's material.
Selwyn Birchwood (born March 9, 1985) is an American blues guitarist, vocalist and songwriter from Tampa, Florida.
 He was the winner of the Blues Foundation’s 2013 International Blues Challenge (band category), as well the winner of the Albert King Guitarist of the Year award, presented at the same event.
 To win, he bested 125 other bands from around the world.
 Birchwood plays electric guitar and electric lap steel guitar.
 His live performances feature his original songs. "
Living Blues" magazine said, "Selwyn Birchwood is making waves, surprising people and defying expectations.
 Be on the lookout.
 He revels in the unexpected." "
The Tampa Tribune" said Birchwood plays with "power and precision reminiscent of blues guitar hero Buddy Guy.
 He is a gritty vocalist [who is] commanding with his axe."
 "Rolling Stone" said "Birchwood is a young, powerhouse guitarist and soulful vocalist.
 "Don’t Call No Ambulance" is a remarkable debut by a major player."
 "The Washington Post" said, "Selwyn Birchwood is an indelibly modern and original next-generation bluesman; his tough vocals, guitar and lap steel touch on classic Chicago blues, Southern soul and boogie."
Guy Webster is a Brisbane singer/songwriter.
 He is a member of Broken Head, The Informants and Guy Webster and Friends and released his solo self-titled debut EP in 2002.
 To promote the EP he went on a national tour with George.
 In 2003, Webster worked with poet Doug Thomson to release an EP, "Seahorse".
Mollie Elizabeth King (born 4 June 1987) is an English singer-songwriter.
 She is best known for being a member of girl group The Saturdays.
 In the Saturdays, King has had thirteen top-ten and eight top-five singles, including the UK no.1 hit What About Us on the UK Singles Chart and five top-ten albums on the UK Albums Chart.
 Before The Saturdays, King was a member of another girl group, Fallen Angelz, with whom she appeared on "The X Factor".
 In 2015, King signed a solo deal with Island Records.
The Saturdays was a British-Irish girl group based in London, England.
 The group formed during the summer of 2007.
 The line up consisted of Frankie Bridge, Una Healy, Rochelle Humes, Mollie King and Vanessa White.
 They were formed through Fascination Records, who gave them an instant record deal with the label as well as a sub-division of Polydor Records.
 As soon as the contract was finalised The Saturdays went on tour with Girls Aloud during their Tangled Up Tour.
 The group's music style is pop, however throughout their career their management have experimented with dance-pop and electropop.
 To create this music, Ina Wroldsen, Steve Mac and Quiz & Larossi have been heavily involved.