I'm gonna do this as well. For years that has two studio albums (or in 2015's case studio album and a mini), I will choose two favs (one from each) because I really can't decide between November and Last Links which one is better for 2010. :'D Anyways, here it goes:

1995: "LIMIT"
1998: "Trust"
1999: "POWDER SNOW" / "monochrome"
2000: "SURREAL"
2001: "Endless sorrow" (Original mix)
2002: "Naturally" / "HANABI"
2003: "ourselves"
2004: "INSPIRE"
2005: "fairyland"
2006: "(miss)understood" / "It was"
2007: "talkin' 2 myself"
2008: "GREEN"
2009: "Sparkle"
2010: "Last Links" / "November"
2011: "ANother song feat. URATA NAOYA"
2012: "Tell me why"
2013: "Missing"
2014: "Lelio"
2015: "Last minute" / "Sorrows"

Yep, I think that's it. And no, you didn't see wrong. ANother song is on my list. I find it awesome~ :heart

1998: YOU
1999: A Song for XX
2000: M
2001: Dearest
2002: No more words
2003: Memorial address
2004: winding road
2005: HEAVEN
2006: BLUE BIRD
2007: Fated
2008: Mirrorcle World
2009: You Were...
2010: Love song
2011: progress
2012: Ivy
2013: Petal
2014: Terminal
2015: NO FUTURE

I did it by memory, hopefully I didn't mess up any release year (I don't think so)...

I am so happy to see so many people loving YOU!!! it's always been one of my most favorite Ayu songs.

1998: Depend on You
1999: A Song for XX
2000: Duty
2001: Dearest
2002: We Wish
2003: Memorial address
2004: My Name's Women
2005: Fairyland
2006: (Miss)understood
2007: Together When...
2008: Days
2009: Rule
2010: Love Song
2011: Why... (featuring Juno)
2012: Return Road
2013: You & Me
2014: Pray
2015: Movin' on Without You

1998: For my dear
1999: Immature (Album version)
2000: Surreal
2001: Endless Sorrow
2002: I am
2003: Memorial Address
2004: Game
2005: Bold & Delicious
2006: Kiss 'o Kill
2007: Fated
2008: Marionette
2009: Sparkle
2010: Last Angel
2011: Brillante
2012: Return Road
2013: Sakura
2014: Zutto..
2015: No Future
2016: Mad World

1998: YOU
1999: appears
2000: Far away
2001: M
2002: Real me
2003: ourselves
2004: GAME
2005: Bold & Delicious
2006: Startin'
2007: talkin' 2 myself
2008: Mirrorcle World
2009: Sparkle
2010: crossroad
2011: beloved
2012: You & Me
2013: Feel the love
2014: Zutto...
2015: WARNING
2016: Mad World

1998: YOU
1999: A Song for ××
2000: SEASONS
2001: Endless sorrow
2002: HANABI
2003: Memorial address
2004: walking proud
2005: fairyland
2006: Secret
2007: fated
2008: Mirrorcle World
2009: Rule
2010: Love song
2011: progress
2012: Ivy
2013: Feel the love
2014: Last minute
2015: Sorrows
2016: Mad World