Trump or Biden will almost certainly stay in office the full four years. So the Veep really isn't the relevant/important person.I would take odds that neither candidate is still coherent in 4 years. So the real pick 'em is the VP candidate. Pence or.........Kamela(?)
If POTUS really loses it (like Reagan did in his second term) what's important is the WH Chief of Staff, National Security Advisor, top cabinet officials (State, Defense, Treasury), and the First Lady.
Biden's crew will be the usual standard issue - highly competent, experienced people of the type that usually fill those roles.
For Trump, it will be Javanka, Hannity, and a continued revolving door of unqualified incompetent unconfirmed "acting" sycophants. Plus the all too competent Bill Barr.
Easiest choice in the world.