Shanks' bounty 12 years ago is 1.04 (or 1.004) billion berries. Shanks is known as "the killer of Color of Observation Haki", which doesn't let his opponent see through the future. Shanks uses his burning sword to villains.
1-year-old Shanks was found in a treasure chest by Roger and Rayleigh that was stolen by Roger when God Valley incident happened. Source: Volume 4 Billion handed out in theaters.
Beckman is good at Haki and rifles, whose bullet penetrates his enemy. He loves women and is popular among women. Yasopp never misses his mark and loves dancing. Lucky Roo is a cook and is not good at handling women. He is good at Haki and attacks like a bowling ball.
Bonk Punch and Monster are musicians. While Monster beats fodders and gain time, Bonk spends some time and releases a strong punch to a formidable enemy in one breath. Oda wrote his power is super-strong. Limejuice fights with a electric stick "in the air like Sanji".
Hongo is a doctor and so familiar with weapons that he can rip apart weapons instantly. He loves a clean environment. Building Snake is a navigator. He attacks with a stomping kick. He fights with acrobatic juggling two-sword style. He is good at defense.
Howling Gab attacks with cutting howling. He hates insects and ghosts. Rockstar attacks with his "smashing-up sword style". He digs a hole with his sword like a drill. He has a strong sense of justice and wants others to follow rules.