Objectively it has more wins than the Speeder if you include Miri’s wins, also a handful of other players also use it at Worlds even though they have their own signatures. Subjectively its an open ended argument
1998 - Yomega RB II
1999 - Spintastics Tigershark
2000 - Spintastics Tigershark
2001 - YYJ SpinFaktor
2002 - Duncan Freehand 1
2003 - YYJ Hitman
2004 - YYJ Speeder
2005 - YYJ Speeder
2006 - YYJ Speeder
2007 - YYF 888
2008 - YYF Superstar
2009 - YYR Sleipnir
2010 - YYF Northstar
2011 - TP Positron
2012 - Something Anglam
2013 - Duncan Barracuda
2014 - YYF Shutter
2015 - CLYW Borealis
2016 - C3 Radius
2017 - C3 Radius
2018 - YYF Edge Beyond
2019 - YYF Wide Angle Shutter
*2021 Online - TP Awoken Anubis?
*2022 Online - YYF Miracle
2023 - YYF Miracle
2024 - YYF Miracle
Add Miracle to 2025 as well