no spoiler will 'suit it best' as all the optional spoilers suit the car, as to what is 'best' is personal opinion alone
my vote is the cup spoiler, some say its the 'chav' spoiler but the whole car is beefed up and stands out, cup spoiler finishes it off nice.
Others say sprint is the best, whereas some will say its too subtle.
Go with what you prefer, not what others suggest