Darth Vader seems the easiest to choose from, as BB's armor would be great but its a sentient piece of technology that would do anything to protect you and that involves destroying various properties. Shazam would've been nice but to yell out Shazam whenever I need an ability would draw a lot of attention to me and duck tape can fuck me over.
Darth Vader (assuming we get the stats) is a high class character that could roughly beat four characters on this list. With those stats granted to me without any sort of weakness, I'm just a man who could very easily take over the Earth with minimal effort
Darth Vader (assuming we get the force) is still a highly skilled ability. That allows telekinesis, precognition, shielding, electric-attacks & you get the gist so on. With a simple hand gesture and some willpower mixed within the equation, I feel like I could deal a sufficient amount of practice with this ability.