20" or 19" alloys on my S4 Avant I need some advice!!

[mannsy52]

Right guys I have just sold my 2008 S5 last week which had the upgraded 20" rs4 style alloys which looked great and to me sat very nice on the car. ( ride height was standard also, no drops )

My problem is I have just purchased a 2011 S4 avant which has currently got the standard 18" alloys on, which to my look completely lost, so I want to upgrade to larger wheels, do I go 19's or 20's.
I have read pros and cons to 20's but really want them on but not sure they might look to big from some of the reports ive read, people saying that with 20's you would need to drop the ride height to make the look of the car better, but in the flip side with 19's im thinking that they just will not fill the arch......
Does anyone have any advice good or bad also any pics to compare.
Thanks in advance ..

[Embisix]

I think the S4 on the 7 split spoke 19s looks just right. A proper q-car.... 20s are just a bit too shouty IMO.... They fill the arches nicely on my s line, so no reason why they wouldn't on the proper S....