it depends on how you want your car to look like in the long run.
if you want an aggressive fit and size, go 19by whatever with around 35 offset.
that will sit very flush once the car is lowered nicely.
but for a more simple look, go with 18s.
i recently bought some 18x8.5 wheels with 35offset for my '93.
testfitting the wheel on there, it sticks out just a tad.
this is want im going for tho, it just makes the car seem wider.
plus, i dont want to run super low profile tires, cuz im scared of
bending a rim or somthing...