there are quite a few 34s I know who have 19s or 20s with no issues..although I don't see the practicality and you will definately sacrifice ride comfort and handling.
First things first, the "springs" u used, how low have you gone? (measure from center of wheel to guard)
secondly, What offsets are the wheels that are scrubbing?
Thirdly, what profile/width tyre are you running?
Personally I'd pick option 3. If you click my signature you will see all the 18" wheels I've had so far, their different widths and offsets. Currently running 18x8.5 +35; 18x9.5 +35. Only minimal rubbing on the front inner guards when going up my driveway on full lock. Oh also running 235/40 and 265/35 tyres front and rear respectively. IF your 19s are rubbing on the outer guard, consider running thinner width tyres front and rear.
Suspension choice also affects ride comfort. lowered springs with stock suspension is not advisable. There is a Bilstein GB that everyone highly recommends...I have chosen a set of Tein Super Streets which is a nice compromise between street and track use, whilst maintaining ride comfort.
Recommended ride height is around 340-350mm from center of wheel to guard..any lower will look hot but handle crap.