I don’t know why anyone would think it’s even close, as a franchise, Spider-Man has had more movies and spin-offs (see what I did there) than anything else. The only one that comes close is X-Men and box office there hasn’t been stellar.

From boxofficemojo.com:

Spider-Man - 2002 - $825,802,095
Spider-Man 2 - 2004 - $784,543,400
Spider-Man 3 - 2007 - $891,679,447
Amazing Spider-Man - 2012 - $758,707,722
Amazing Spider-Man 2 - 2014 - $716,916,608 Homecoming - 2017 - $880,960,014
Into the Spider-Verse - 2018 - $393,602,435
Venom - 2018 - $856,085,161
Far From Home - 2019 - $1,132,705,055
No Way Home - 2021 - $1,952,732,181
Venom: Let There Be Carnage - 2021 - $506,813,864
Across the Spider-Verse - 2023 - $690,824,738
Venom: Last Dance - 2024 - $478,930,404
Madame Web - 2024 - $100,498,764
Kraven The Hunter - 2024 - $61,989,190

15 films in 22 years. $11,032,791,078. Average $735,519,405.2 per film.

X-Men - 2000 - $296,339,528
X2 - 2003 - $407,711,549
Last Stand - 2006 - $460,435,291
Origins: Wolverine - 2009 - $373,062,864
First Class - 2011 - $352,616,690
The Wolverine - 2013 - $414,828,246
Days of Future Past - 2014 - $746,045,700
Apocalypse - 2016 - $543,934,105
Deadpool - 2016 - $782,837,347
Logan - 2017 - $619,180,476
Deadpool 2 - $785,896,632
Dark Phoenix - 2019 - $252,442,974
New Mutants - 2020 - $49,169,594
Deadpool & Wolverine - 2024 - $1,338,073,645

14 films in 25 years. $7,422,584,641
Average $494,838,976 per film.