I assume no Superpowers or superhuman skills/stats etc?
1. Jason Bourne
Explanation not needed I believe. Pretty much the best the human race has to offer, in the context of realism.
2. Ethan Hunt
Lets be real here, Banks and Armored cars is child's play for this IMF agent. Backed with major experience and skills
3. Neil McCauley (Heat/Robert De Niro)
For his experience in robberies. He has done both a bank and armored vehicles.
4. Danny Ocean
For his brains. Could probably think of a way to do this with minimal violence.
5. Lex Luthor
For his brains, which is way overkill. But also for funding, supplying equipment, buying information etc. Heck, this billionaire has enough to pay off all the guards lol.
6.Marv Merchants (Home Alone)
Just for laughs, probably the guy they use as a decoy lol.
But seriously, this topic is way too easy. There are many other alternatives that could pull this off easily, heck probably solo.