2005: Fed.
2006: Fed.
2007: Likely Fed against Nole.
2008: Leaning Nole against Fed.
2010: Soderling.
2011: Fed.
2012: Nole.
2013: Nole.
2014: Nole.
2017: Toss up Waw/Thiem.
2018: Leaning/Likely Thiem against Delpo.
2019: Thiem.
2020: Very likely Nole against Schwartzman/Sinner.
Saying 2007 goes to Fed and 2020 to Nole.
We have 2005, 2006, 2007, 2009 and 2011 for Fed. Five titles.
2012, 2013, 2014, 2016 and 2020 for Nole. Five titles.
So we can translate the question in: who would have won in 2008 hypotetical final between Nole and Fed? I say Nole. But it's near a toss up.