5 or 4 ads for Adlinks Blocks?

Do you notice some performance difference?

[silverbytes]

Adlinks 728 px width:

5 ads seems to give you more click chances but font is smaller than 4 ads.

Do you notice any difference in performance between those?
I'd personally go with 4.

[hunderdown]

When I have a choice, I prefer the larger font and more copy. I've also used an ad format--the half banner?--that didn't include the advertiser's URL. I didn't like that. I want it to be clear that a click takes a visitor to another site. So I changed it.

I can't point to performance differences. More important is how they look, IMO.