http://bulbapedia.bulbagarden.net/wiki/Poke_ball
Pokeball Boosts:
Poke Ball = x1
Great Ball = x1.5
Ultra Ball = x2
Master Ball = x255 (guaranteed capture)
Safari Ball = x1.5
Level Ball = x1, x2, x4, or x8 depending on level gap
Lure Ball = x3 on Pokemon caught using rod
Moon Ball = x4 on Nidoran (either), Clefairy, Jigglypuff, or Skitty lines
Friend Ball = x1
Love Ball = x8 if opponent is opposite gender
Heavy Ball = -20, +20, +30, +40 depending on opponent's weight
Fast Ball = x4 if used on Pokmeon that run from battle (Abra, roaming legends) or on Pokemon with a base speed of at least 100
Sport Ball = x1.5
Premier Ball = x1
Repeat Ball = x3 if you've previously caught the Pokemon
Timer Ball = x1 + 1229\4096(0.3 x # of turns passed), maxes out at x4
Nest Ball = (40 - opponent's level)\10, cannot go lower than x1
Net Ball = x3 on Water and Bug types
Dive Ball = x3.5 while underwater
Luxury Ball = x1
Heal Ball = x1
Quick Ball = x4 on first turn
Dusk Ball = x3.5 in cave or at night
Park Ball = x255 (guaranteed capture)
Dream Ball = x255 (guaranteed capture)
SF6: Lily, Ryu, Luke | SSBU: Ike, K. Rool, Ridley
SC6: Talim, Kilik, 2B | DNFD: Vanguard, Hitman, Berserker